161371372 has 12 divisors (see below), whose sum is σ = 287186760. Its totient is φ = 79318016.

The previous prime is 161371333. The next prime is 161371403. The reversal of 161371372 is 273173161.

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, 341653 + ... + 342124.

It is an arithmetic number, because the mean of its divisors is an integer number (23932230).

Almost surely, 2^161371372 is an apocalyptic number.

It is an amenable number.

161371372 is a deficient number, since it is larger than the sum of its proper divisors (125815388).

161371372 is a wasteful number, since it uses less digits than its factorization.

161371372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683840 (or 683838 counting only the distinct ones).

The product of its digits is 5292, while the sum is 31.

The square root of 161371372 is about 12703.2032180864. The cubic root of 161371372 is about 544.4301447615.

The spelling of 161371372 in words is "one hundred sixty-one million, three hundred seventy-one thousand, three hundred seventy-two".