122856392 has 8 divisors (see below), whose sum is σ = 230355750. Its totient is φ = 61428192.

The previous prime is 122856367. The next prime is 122856403. The reversal of 122856392 is 293658221.

It can be written as a sum of positive squares in only one way, i.e., 118504996 + 4351396 = 10886^2 + 2086^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7678517 + ... + 7678532.

Almost surely, 2^122856392 is an apocalyptic number.

It is an amenable number.

122856392 is a deficient number, since it is larger than the sum of its proper divisors (107499358).

122856392 is a wasteful number, since it uses less digits than its factorization.

122856392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15357055 (or 15357051 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 122856392 is about 11084.0602668878. The cubic root of 122856392 is about 497.1253605693.

The spelling of 122856392 in words is "one hundred twenty-two million, eight hundred fifty-six thousand, three hundred ninety-two".