161930752 has 20 divisors (see below), whose sum is σ = 323546256. Its totient is φ = 80965120.

The previous prime is 161930707. The next prime is 161930767. The reversal of 161930752 is 257039161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157624 + ... + 158647.

Almost surely, 2^161930752 is an apocalyptic number.

It is an amenable number.

161930752 is a deficient number, since it is larger than the sum of its proper divisors (161615504).

161930752 is an frugal number, since it uses more digits than its factorization.

161930752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316289 (or 316273 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 161930752 is about 12725.2014522364. The cubic root of 161930752 is about 545.0584927260.

The spelling of 161930752 in words is "one hundred sixty-one million, nine hundred thirty thousand, seven hundred fifty-two".