157892957 has 4 divisors (see below), whose sum is σ = 167180796. Its totient is φ = 148605120.

The previous prime is 157892929. The next prime is 157892963. The reversal of 157892957 is 759298751.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 108035236 + 49857721 = 10394^2 + 7061^2 .

It is a cyclic number.

It is not a de Polignac number, because 157892957 - 2⁶ = 157892893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 157892899 and 157892908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157892557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4643894 + ... + 4643927.

It is an arithmetic number, because the mean of its divisors is an integer number (41795199).

Almost surely, 2^157892957 is an apocalyptic number.

157892957 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

157892957 is a deficient number, since it is larger than the sum of its proper divisors (9287839).

157892957 is an equidigital number, since it uses as much as digits as its factorization.

157892957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9287838.

The product of its digits is 1587600, while the sum is 53.

The square root of 157892957 is about 12565.5464266382. The cubic root of 157892957 is about 540.4899040612.

The spelling of 157892957 in words is "one hundred fifty-seven million, eight hundred ninety-two thousand, nine hundred fifty-seven".