161852512 has 24 divisors (see below), whose sum is σ = 337392216. Its totient is φ = 76165632.

The previous prime is 161852501. The next prime is 161852527. The reversal of 161852512 is 215258161.

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, 148218 + ... + 149305.

It is an arithmetic number, because the mean of its divisors is an integer number (14058009).

Almost surely, 2^161852512 is an apocalyptic number.

It is an amenable number.

161852512 is an abundant number, since it is smaller than the sum of its proper divisors (175539704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161852512 is a wasteful number, since it uses less digits than its factorization.

161852512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297550 (or 297542 counting only the distinct ones).

The product of its digits is 4800, while the sum is 31.

The square root of 161852512 is about 12722.1268662123. The cubic root of 161852512 is about 544.9706933712.

The spelling of 161852512 in words is "one hundred sixty-one million, eight hundred fifty-two thousand, five hundred twelve".