161876874 has 16 divisors (see below), whose sum is σ = 324735840. Its totient is φ = 53795280.

The previous prime is 161876863. The next prime is 161876899. The reversal of 161876874 is 478678161.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38769 + ... + 42740.

It is an arithmetic number, because the mean of its divisors is an integer number (20295990).

Almost surely, 2^161876874 is an apocalyptic number.

161876874 is an abundant number, since it is smaller than the sum of its proper divisors (162858966).

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

161876874 is a wasteful number, since it uses less digits than its factorization.

161876874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81845.

The product of its digits is 451584, while the sum is 48.

The square root of 161876874 is about 12723.0842958773. The cubic root of 161876874 is about 544.9980349507.

The spelling of 161876874 in words is "one hundred sixty-one million, eight hundred seventy-six thousand, eight hundred seventy-four".