121925164 has 12 divisors (see below), whose sum is σ = 220726800. Its totient is φ = 58860368.

The previous prime is 121925149. The next prime is 121925171. The reversal of 121925164 is 461529121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525424 + ... + 525655.

It is an arithmetic number, because the mean of its divisors is an integer number (18393900).

Almost surely, 2^121925164 is an apocalyptic number.

It is an amenable number.

121925164 is a deficient number, since it is larger than the sum of its proper divisors (98801636).

121925164 is a wasteful number, since it uses less digits than its factorization.

121925164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051112 (or 1051110 counting only the distinct ones).

The product of its digits is 4320, while the sum is 31.

The square root of 121925164 is about 11041.9728309755. The cubic root of 121925164 is about 495.8661351806.

The spelling of 121925164 in words is "one hundred twenty-one million, nine hundred twenty-five thousand, one hundred sixty-four".