161149874 has 16 divisors (see below), whose sum is σ = 251971008. Its totient is φ = 77224752.

The previous prime is 161149829. The next prime is 161149889. The reversal of 161149874 is 478941161.

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, 11294 + ... + 21209.

It is an arithmetic number, because the mean of its divisors is an integer number (15748188).

Almost surely, 2^161149874 is an apocalyptic number.

161149874 is a deficient number, since it is larger than the sum of its proper divisors (90821134).

161149874 is a wasteful number, since it uses less digits than its factorization.

161149874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32609.

The product of its digits is 48384, while the sum is 41.

The square root of 161149874 is about 12694.4820296064. The cubic root of 161149874 is about 544.1809361549.

The spelling of 161149874 in words is "one hundred sixty-one million, one hundred forty-nine thousand, eight hundred seventy-four".