165157023 has 32 divisors (see below), whose sum is σ = 240869376. Its totient is φ = 100251648.

The previous prime is 165157019. The next prime is 165157039. The reversal of 165157023 is 320751561.

165157023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 165157023 - 2² = 165157019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165157723) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 278215 + ... + 278807.

It is an arithmetic number, because the mean of its divisors is an integer number (7527168).

Almost surely, 2^165157023 is an apocalyptic number.

165157023 is a deficient number, since it is larger than the sum of its proper divisors (75712353).

165157023 is a wasteful number, since it uses less digits than its factorization.

165157023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 165157023 is about 12851.3432371873. The cubic root of 165157023 is about 548.6545881165.

The spelling of 165157023 in words is "one hundred sixty-five million, one hundred fifty-seven thousand, twenty-three".