155757136 has 40 divisors (see below), whose sum is σ = 321541920. Its totient is φ = 72878976.

The previous prime is 155757103. The next prime is 155757157. The reversal of 155757136 is 631757551.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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, 22146 + ... + 28318.

It is an arithmetic number, because the mean of its divisors is an integer number (8038548).

Almost surely, 2^155757136 is an apocalyptic number.

155757136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155757136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160770960).

155757136 is an abundant number, since it is smaller than the sum of its proper divisors (165784784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155757136 is a wasteful number, since it uses less digits than its factorization.

155757136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6283 (or 6277 counting only the distinct ones).

The product of its digits is 110250, while the sum is 40.

The square root of 155757136 is about 12480.2698688770. The cubic root of 155757136 is about 538.0417595866.

The spelling of 155757136 in words is "one hundred fifty-five million, seven hundred fifty-seven thousand, one hundred thirty-six".