161907052 has 12 divisors (see below), whose sum is σ = 284681656. Its totient is φ = 80569440.

The previous prime is 161907043. The next prime is 161907107. The reversal of 161907052 is 250709161.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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, 95073 + ... + 96760.

Almost surely, 2^161907052 is an apocalyptic number.

It is an amenable number.

161907052 is a deficient number, since it is larger than the sum of its proper divisors (122774604).

161907052 is a wasteful number, since it uses less digits than its factorization.

161907052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192048 (or 192046 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 161907052 is about 12724.2701951821. The cubic root of 161907052 is about 545.0319000490.

The spelling of 161907052 in words is "one hundred sixty-one million, nine hundred seven thousand, fifty-two".