157012390 has 16 divisors (see below), whose sum is σ = 297497520. Its totient is φ = 59499360.

The previous prime is 157012379. The next prime is 157012399. The reversal of 157012390 is 93210751.

It is a super-2 number, since 2×157012390² = 49305781227024200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157012399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413001 + ... + 413380.

It is an arithmetic number, because the mean of its divisors is an integer number (18593595).

Almost surely, 2^157012390 is an apocalyptic number.

157012390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157012390 is a deficient number, since it is larger than the sum of its proper divisors (140485130).

157012390 is a wasteful number, since it uses less digits than its factorization.

157012390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826407.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 157012390 is about 12530.4584912125. The cubic root of 157012390 is about 539.4832619667.

The spelling of 157012390 in words is "one hundred fifty-seven million, twelve thousand, three hundred ninety".