122715812 has 6 divisors (see below), whose sum is σ = 214752678. Its totient is φ = 61357904.

The previous prime is 122715799. The next prime is 122715823. The reversal of 122715812 is 218517221.

It can be written as a sum of positive squares in only one way, i.e., 116294656 + 6421156 = 10784^2 + 2534^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15339473 + ... + 15339480.

It is an arithmetic number, because the mean of its divisors is an integer number (35792113).

Almost surely, 2^122715812 is an apocalyptic number.

It is an amenable number.

122715812 is a deficient number, since it is larger than the sum of its proper divisors (92036866).

122715812 is a wasteful number, since it uses less digits than its factorization.

122715812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30678957 (or 30678955 counting only the distinct ones).

The product of its digits is 2240, while the sum is 29.

The square root of 122715812 is about 11077.7169127939. The cubic root of 122715812 is about 496.9356741803.

The spelling of 122715812 in words is "one hundred twenty-two million, seven hundred fifteen thousand, eight hundred twelve".