121374172 has 24 divisors (see below), whose sum is σ = 214704000. Its totient is φ = 60034416.

The previous prime is 121374167. The next prime is 121374247. The reversal of 121374172 is 271473121.

It is a self number, because there is not a number n which added to its sum of digits gives 121374172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202329 + ... + 202927.

It is an arithmetic number, because the mean of its divisors is an integer number (8946000).

Almost surely, 2^121374172 is an apocalyptic number.

It is an amenable number.

121374172 is a deficient number, since it is larger than the sum of its proper divisors (93329828).

121374172 is a wasteful number, since it uses less digits than its factorization.

121374172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065 (or 1063 counting only the distinct ones).

The product of its digits is 2352, while the sum is 28.

The square root of 121374172 is about 11016.9946900232. The cubic root of 121374172 is about 495.1180509517.

The spelling of 121374172 in words is "one hundred twenty-one million, three hundred seventy-four thousand, one hundred seventy-two".