157051031 has 8 divisors (see below), whose sum is σ = 160399440. Its totient is φ = 153716992.

The previous prime is 157051019. The next prime is 157051039. The reversal of 157051031 is 130150751.

157051031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157051031 is a prime.

It is a super-2 number, since 2×157051031² = 49330052676325922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 157050988 and 157051006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157051039) 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, 20135 + ... + 26823.

It is an arithmetic number, because the mean of its divisors is an integer number (20049930).

Almost surely, 2^157051031 is an apocalyptic number.

157051031 is a deficient number, since it is larger than the sum of its proper divisors (3348409).

157051031 is an equidigital number, since it uses as much as digits as its factorization.

157051031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7185.

The product of its (nonzero) digits is 525, while the sum is 23.

The square root of 157051031 is about 12532.0002792850. Note that the first 3 decimals coincide. The cubic root of 157051031 is about 539.5275142343.

The spelling of 157051031 in words is "one hundred fifty-seven million, fifty-one thousand, thirty-one".