165164523 has 8 divisors (see below), whose sum is σ = 225590736. Its totient is φ = 107424000.

The previous prime is 165164521. The next prime is 165164551. The reversal of 165164523 is 325461561.

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

It is not a de Polignac number, because 165164523 - 2¹ = 165164521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165164521) 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, 671278 + ... + 671523.

It is an arithmetic number, because the mean of its divisors is an integer number (28198842).

Almost surely, 2^165164523 is an apocalyptic number.

165164523 is a deficient number, since it is larger than the sum of its proper divisors (60426213).

165164523 is a wasteful number, since it uses less digits than its factorization.

165164523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342845.

The product of its digits is 21600, while the sum is 33.

The square root of 165164523 is about 12851.6350321661. The cubic root of 165164523 is about 548.6628930355.

The spelling of 165164523 in words is "one hundred sixty-five million, one hundred sixty-four thousand, five hundred twenty-three".