161830376 has 16 divisors (see below), whose sum is σ = 304114500. Its totient is φ = 80733184.

The previous prime is 161830373. The next prime is 161830387. The reversal of 161830376 is 673038161.

161830376 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 158105476 + 3724900 = 12574^2 + 1930^2 .

It is not an unprimeable number, because it can be changed into a prime (161830373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18935 + ... + 26118.

Almost surely, 2^161830376 is an apocalyptic number.

It is an amenable number.

161830376 is a deficient number, since it is larger than the sum of its proper divisors (142284124).

161830376 is a wasteful number, since it uses less digits than its factorization.

161830376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45508 (or 45504 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 161830376 is about 12721.2568561444. The cubic root of 161830376 is about 544.9458476622.

The spelling of 161830376 in words is "one hundred sixty-one million, eight hundred thirty thousand, three hundred seventy-six".