122156464 has 20 divisors (see below), whose sum is σ = 242183656. Its totient is φ = 59657472.

The previous prime is 122156449. The next prime is 122156479. The reversal of 122156464 is 464651221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (122156449) and next prime (122156479).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88089 + ... + 89464.

Almost surely, 2^122156464 is an apocalyptic number.

It is an amenable number.

122156464 is a deficient number, since it is larger than the sum of its proper divisors (120027192).

122156464 is a wasteful number, since it uses less digits than its factorization.

122156464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177604 (or 177598 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 122156464 is about 11052.4415402209. The cubic root of 122156464 is about 496.1795005883.

The spelling of 122156464 in words is "one hundred twenty-two million, one hundred fifty-six thousand, four hundred sixty-four".