161175004 has 12 divisors (see below), whose sum is σ = 282625000. Its totient is φ = 80425008.

The previous prime is 161174989. The next prime is 161175013. The reversal of 161175004 is 400571161.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 161175004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38379 + ... + 42370.

Almost surely, 2^161175004 is an apocalyptic number.

It is an amenable number.

161175004 is a deficient number, since it is larger than the sum of its proper divisors (121449996).

161175004 is a wasteful number, since it uses less digits than its factorization.

161175004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81252 (or 81250 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 161175004 is about 12695.4717911545. The cubic root of 161175004 is about 544.2092215347.

The spelling of 161175004 in words is "one hundred sixty-one million, one hundred seventy-five thousand, four".