161057392 has 20 divisors (see below), whose sum is σ = 315081520. Its totient is φ = 79746048.

The previous prime is 161057353. The next prime is 161057417. The reversal of 161057392 is 293750161.

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, 47217 + ... + 50512.

It is an arithmetic number, because the mean of its divisors is an integer number (15754076).

Almost surely, 2^161057392 is an apocalyptic number.

It is an amenable number.

161057392 is a deficient number, since it is larger than the sum of its proper divisors (154024128).

161057392 is a wasteful number, since it uses less digits than its factorization.

161057392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97840 (or 97834 counting only the distinct ones).

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

The square root of 161057392 is about 12690.8389005613. The cubic root of 161057392 is about 544.0768165746.

The spelling of 161057392 in words is "one hundred sixty-one million, fifty-seven thousand, three hundred ninety-two".