165764125 has 32 divisors (see below), whose sum is σ = 213497856. Its totient is φ = 128440000.

The previous prime is 165764117. The next prime is 165764143. The reversal of 165764125 is 521467561.

It is a happy number.

165764125 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 165764125 - 2³ = 165764117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 867780 + ... + 867970.

It is an arithmetic number, because the mean of its divisors is an integer number (6671808).

Almost surely, 2^165764125 is an apocalyptic number.

It is an amenable number.

165764125 is a deficient number, since it is larger than the sum of its proper divisors (47733731).

165764125 is a wasteful number, since it uses less digits than its factorization.

165764125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390 (or 380 counting only the distinct ones).

The product of its digits is 50400, while the sum is 37.

The square root of 165764125 is about 12874.9417474410. The cubic root of 165764125 is about 549.3260339684.

The spelling of 165764125 in words is "one hundred sixty-five million, seven hundred sixty-four thousand, one hundred twenty-five".