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131130301 = 343338197
BaseRepresentation
bin1111101000011…
…10001110111101
3100010202002221211
413310032032331
5232032132201
621002324421
73151406041
oct764161675
9303662854
10131130301
1168024155
1237ab9711
13212230c3
14135b6021
15b7a3651
hex7d0e3bd

131130301 has 4 divisors (see below), whose sum is σ = 131171932. Its totient is φ = 131088672.

The previous prime is 131130287. The next prime is 131130313. The reversal of 131130301 is 103031131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 103031131 = 714718733.

It can be written as a sum of positive squares in 2 ways, for example, as 44156025 + 86974276 = 6645^2 + 9326^2 .

It is a cyclic number.

It is not a de Polignac number, because 131130301 - 27 = 131130173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131130361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15666 + ... + 22531.

It is an arithmetic number, because the mean of its divisors is an integer number (32792983).

Almost surely, 2131130301 is an apocalyptic number.

It is an amenable number.

131130301 is a deficient number, since it is larger than the sum of its proper divisors (41631).

131130301 is an equidigital number, since it uses as much as digits as its factorization.

131130301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41630.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 131130301 is about 11451.2139531143. The cubic root of 131130301 is about 508.0436404632.

Adding to 131130301 its reverse (103031131), we get a palindrome (234161432).

The spelling of 131130301 in words is "one hundred thirty-one million, one hundred thirty thousand, three hundred one".

Divisors: 1 3433 38197 131130301