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135071 = 197109
BaseRepresentation
bin100000111110011111
320212021122
4200332133
513310241
62521155
71101536
oct407637
9225248
10135071
1192532
12661bb
1349631
143731d
152a04b
hex20f9f

135071 has 4 divisors (see below), whose sum is σ = 142200. Its totient is φ = 127944.

The previous prime is 135059. The next prime is 135077. The reversal of 135071 is 170531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 170531 = 315501.

It is a cyclic number.

It is not a de Polignac number, because 135071 - 26 = 135007 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 (135077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3536 + ... + 3573.

It is an arithmetic number, because the mean of its divisors is an integer number (35550).

2135071 is an apocalyptic number.

135071 is a deficient number, since it is larger than the sum of its proper divisors (7129).

135071 is an equidigital number, since it uses as much as digits as its factorization.

135071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7128.

The product of its (nonzero) digits is 105, while the sum is 17.

The square root of 135071 is about 367.5200674793. The cubic root of 135071 is about 51.3082700310.

The spelling of 135071 in words is "one hundred thirty-five thousand, seventy-one".

Divisors: 1 19 7109 135071