121625164 has 6 divisors (see below), whose sum is σ = 212844044. Its totient is φ = 60812580.

The previous prime is 121625117. The next prime is 121625209. The reversal of 121625164 is 461526121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15203142 + ... + 15203149.

Almost surely, 2^121625164 is an apocalyptic number.

It is an amenable number.

121625164 is a deficient number, since it is larger than the sum of its proper divisors (91218880).

121625164 is a wasteful number, since it uses less digits than its factorization.

121625164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30406295 (or 30406293 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 121625164 is about 11028.3799354212. The cubic root of 121625164 is about 495.4591040371.

The spelling of 121625164 in words is "one hundred twenty-one million, six hundred twenty-five thousand, one hundred sixty-four".