121456372 has 6 divisors (see below), whose sum is σ = 212548658. Its totient is φ = 60728184.

The previous prime is 121456369. The next prime is 121456403. The reversal of 121456372 is 273654121.

It can be written as a sum of positive squares in only one way, i.e., 103103716 + 18352656 = 10154^2 + 4284^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15182043 + ... + 15182050.

Almost surely, 2^121456372 is an apocalyptic number.

It is an amenable number.

121456372 is a deficient number, since it is larger than the sum of its proper divisors (91092286).

121456372 is a wasteful number, since it uses less digits than its factorization.

121456372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30364097 (or 30364095 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 121456372 is about 11020.7246585694. The cubic root of 121456372 is about 495.2297977342.

The spelling of 121456372 in words is "one hundred twenty-one million, four hundred fifty-six thousand, three hundred seventy-two".