157204312 has 32 divisors (see below), whose sum is σ = 299980800. Its totient is φ = 77220000.

The previous prime is 157204303. The next prime is 157204319. The reversal of 157204312 is 213402751.

It is a happy number.

It is a super-2 number, since 2×157204312² = 49426391422786688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157204319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158137 + ... + 159127.

It is an arithmetic number, because the mean of its divisors is an integer number (9374400).

Almost surely, 2^157204312 is an apocalyptic number.

It is an amenable number.

157204312 is a deficient number, since it is larger than the sum of its proper divisors (142776488).

157204312 is a wasteful number, since it uses less digits than its factorization.

157204312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327 (or 1323 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 157204312 is about 12538.1143717865. The cubic root of 157204312 is about 539.7029825226.

The spelling of 157204312 in words is "one hundred fifty-seven million, two hundred four thousand, three hundred twelve".