157065923 has 6 divisors (see below), whose sum is σ = 182709396. Its totient is φ = 134627892.

The previous prime is 157065917. The next prime is 157065929. The reversal of 157065923 is 329560751.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (157065917) and next prime (157065929).

It is not a de Polignac number, because 157065923 - 2²² = 152871619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157065929) 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 5 ways as a sum of consecutive naturals, for example, 1602665 + ... + 1602762.

It is an arithmetic number, because the mean of its divisors is an integer number (30451566).

Almost surely, 2^157065923 is an apocalyptic number.

157065923 is a deficient number, since it is larger than the sum of its proper divisors (25643473).

157065923 is an equidigital number, since it uses as much as digits as its factorization.

157065923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3205441 (or 3205434 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 38.

The square root of 157065923 is about 12532.5944241406. The cubic root of 157065923 is about 539.5445668440.

The spelling of 157065923 in words is "one hundred fifty-seven million, sixty-five thousand, nine hundred twenty-three".