165124172 has 6 divisors (see below), whose sum is σ = 288967308. Its totient is φ = 82562084.

The previous prime is 165124159. The next prime is 165124187. The reversal of 165124172 is 271421561.

165124172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20640518 + ... + 20640525.

It is an arithmetic number, because the mean of its divisors is an integer number (48161218).

Almost surely, 2^165124172 is an apocalyptic number.

It is an amenable number.

165124172 is a deficient number, since it is larger than the sum of its proper divisors (123843136).

165124172 is a wasteful number, since it uses less digits than its factorization.

165124172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41281047 (or 41281045 counting only the distinct ones).

The product of its digits is 3360, while the sum is 29.

The square root of 165124172 is about 12850.0650582011. The cubic root of 165124172 is about 548.6182085009.

The spelling of 165124172 in words is "one hundred sixty-five million, one hundred twenty-four thousand, one hundred seventy-two".