157012387 has 8 divisors (see below), whose sum is σ = 180029696. Its totient is φ = 134141832.

The previous prime is 157012379. The next prime is 157012399. The reversal of 157012387 is 783210751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157012387 - 2³ = 157012379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157012337) 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, 34383 + ... + 38680.

It is an arithmetic number, because the mean of its divisors is an integer number (22503712).

Almost surely, 2^157012387 is an apocalyptic number.

157012387 is a deficient number, since it is larger than the sum of its proper divisors (23017309).

157012387 is an equidigital number, since it uses as much as digits as its factorization.

157012387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73377.

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 157012387 is about 12530.4583715042. The cubic root of 157012387 is about 539.4832585308.

The spelling of 157012387 in words is "one hundred fifty-seven million, twelve thousand, three hundred eighty-seven".