157232052 has 18 divisors (see below), whose sum is σ = 397447778. Its totient is φ = 52410672.

The previous prime is 157232051. The next prime is 157232063. The reversal of 157232052 is 250232751.

It can be written as a sum of positive squares in only one way, i.e., 128459556 + 28772496 = 11334^2 + 5364^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×157232052² = 49443836352261408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157232051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2183743 + ... + 2183814.

Almost surely, 2^157232052 is an apocalyptic number.

157232052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

157232052 is an abundant number, since it is smaller than the sum of its proper divisors (240215726).

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

157232052 is a wasteful number, since it uses less digits than its factorization.

157232052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4367567 (or 4367562 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 157232052 is about 12539.2205499385. The cubic root of 157232052 is about 539.7347256727.

The spelling of 157232052 in words is "one hundred fifty-seven million, two hundred thirty-two thousand, fifty-two".