155636 has 24 divisors (see below), whose sum is σ = 304584. Its totient is φ = 69120.

The previous prime is 155627. The next prime is 155653. The reversal of 155636 is 636551.

It can be written as a sum of positive squares in 4 ways, for example, as 400 + 155236 = 20^2 + 394^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2096 + ... + 2168.

It is an arithmetic number, because the mean of its divisors is an integer number (12691).

2¹⁵⁵⁶³⁶ is an apocalyptic number.

It is an amenable number.

155636 is a deficient number, since it is larger than the sum of its proper divisors (148948).

155636 is a wasteful number, since it uses less digits than its factorization.

155636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 129 counting only the distinct ones).

The product of its digits is 2700, while the sum is 26.

The square root of 155636 is about 394.5072876386. The cubic root of 155636 is about 53.7902240821.

The spelling of 155636 in words is "one hundred fifty-five thousand, six hundred thirty-six".