157122937 has 4 divisors (see below), whose sum is σ = 159275380. Its totient is φ = 154970496.

The previous prime is 157122923. The next prime is 157122943. The reversal of 157122937 is 739221751.

157122937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 122677776 + 34445161 = 11076^2 + 5869^2 .

It is a cyclic number.

It is not a de Polignac number, because 157122937 - 2⁷ = 157122809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 157122896 and 157122905.

It is not an unprimeable number, because it can be changed into a prime (157122967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1076112 + ... + 1076257.

It is an arithmetic number, because the mean of its divisors is an integer number (39818845).

Almost surely, 2^157122937 is an apocalyptic number.

It is an amenable number.

157122937 is a deficient number, since it is larger than the sum of its proper divisors (2152443).

157122937 is an equidigital number, since it uses as much as digits as its factorization.

157122937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2152442.

The product of its digits is 26460, while the sum is 37.

The square root of 157122937 is about 12534.8688465416. The cubic root of 157122937 is about 539.6098427740.

The spelling of 157122937 in words is "one hundred fifty-seven million, one hundred twenty-two thousand, nine hundred thirty-seven".