155757012 has 48 divisors (see below), whose sum is σ = 382986240. Its totient is φ = 49170528.

The previous prime is 155756981. The next prime is 155757037. The reversal of 155757012 is 210757551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25689 + ... + 31167.

It is an arithmetic number, because the mean of its divisors is an integer number (7978880).

Almost surely, 2^155757012 is an apocalyptic number.

155757012 is a gapful number since it is divisible by the number (12) 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 155757012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191493120).

155757012 is an abundant number, since it is smaller than the sum of its proper divisors (227229228).

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

155757012 is a wasteful number, since it uses less digits than its factorization.

155757012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5612 (or 5610 counting only the distinct ones).

The product of its (nonzero) digits is 12250, while the sum is 33.

The square root of 155757012 is about 12480.2649010348. The cubic root of 155757012 is about 538.0416168062.

The spelling of 155757012 in words is "one hundred fifty-five million, seven hundred fifty-seven thousand, twelve".