157232631 has 8 divisors (see below), whose sum is σ = 209870064. Its totient is φ = 104708480.

The previous prime is 157232599. The next prime is 157232641. The reversal of 157232631 is 136232751.

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 157232631 - 2⁵ = 157232599 is a prime.

It is a super-2 number, since 2×157232631² = 49444200502364322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157232641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25026 + ... + 30671.

It is an arithmetic number, because the mean of its divisors is an integer number (26233758).

Almost surely, 2^157232631 is an apocalyptic number.

157232631 is a deficient number, since it is larger than the sum of its proper divisors (52637433).

157232631 is an equidigital number, since it uses as much as digits as its factorization.

157232631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56641.

The product of its digits is 7560, while the sum is 30.

The square root of 157232631 is about 12539.2436374767. The cubic root of 157232631 is about 539.7353881883.

The spelling of 157232631 in words is "one hundred fifty-seven million, two hundred thirty-two thousand, six hundred thirty-one".