161373964 has 12 divisors (see below), whose sum is σ = 282681000. Its totient is φ = 80607968.

The previous prime is 161373913. The next prime is 161373967. The reversal of 161373964 is 469373161.

It is not an unprimeable number, because it can be changed into a prime (161373967) 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, 15034 + ... + 23425.

It is an arithmetic number, because the mean of its divisors is an integer number (23556750).

Almost surely, 2^161373964 is an apocalyptic number.

It is an amenable number.

161373964 is a deficient number, since it is larger than the sum of its proper divisors (121307036).

161373964 is a wasteful number, since it uses less digits than its factorization.

161373964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39512 (or 39510 counting only the distinct ones).

The product of its digits is 81648, while the sum is 40.

The square root of 161373964 is about 12703.3052391887. The cubic root of 161373964 is about 544.4330596845.

The spelling of 161373964 in words is "one hundred sixty-one million, three hundred seventy-three thousand, nine hundred sixty-four".