161674904 has 32 divisors (see below), whose sum is σ = 314252400. Its totient is φ = 77915520.

The previous prime is 161674861. The next prime is 161674907. The reversal of 161674904 is 409476161.

It is a happy number.

161674904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161674904² = 52277549166818432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161674907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29759 + ... + 34769.

Almost surely, 2^161674904 is an apocalyptic number.

It is an amenable number.

161674904 is a deficient number, since it is larger than the sum of its proper divisors (152577496).

161674904 is a wasteful number, since it uses less digits than its factorization.

161674904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5163 (or 5159 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 161674904 is about 12715.1446708246. The cubic root of 161674904 is about 544.7712801735.

The spelling of 161674904 in words is "one hundred sixty-one million, six hundred seventy-four thousand, nine hundred four".