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135234041 = 421321221
BaseRepresentation
bin10000000111110…
…00000111111001
3100102110121020012
420003320013321
5234104442131
621230311305
73231320225
oct1003700771
9312417205
10135234041
116a377378
1239358535
132202bc57
1413d63785
15bd1452b
hex80f81f9

135234041 has 4 divisors (see below), whose sum is σ = 135555684. Its totient is φ = 134912400.

The previous prime is 135234019. The next prime is 135234061. The reversal of 135234041 is 140432531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 140432531 = 491928549.

It can be written as a sum of positive squares in 2 ways, for example, as 674041 + 134560000 = 821^2 + 11600^2 .

It is a cyclic number.

It is not a de Polignac number, because 135234041 - 26 = 135233977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135233998 and 135234016.

It is not an unprimeable number, because it can be changed into a prime (135234061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160190 + ... + 161031.

It is an arithmetic number, because the mean of its divisors is an integer number (33888921).

Almost surely, 2135234041 is an apocalyptic number.

It is an amenable number.

135234041 is a deficient number, since it is larger than the sum of its proper divisors (321643).

135234041 is an equidigital number, since it uses as much as digits as its factorization.

135234041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321642.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 135234041 is about 11629.0171983706. The cubic root of 135234041 is about 513.2890606202.

Adding to 135234041 its reverse (140432531), we get a palindrome (275666572).

The spelling of 135234041 in words is "one hundred thirty-five million, two hundred thirty-four thousand, forty-one".

Divisors: 1 421 321221 135234041