122979115 has 32 divisors (see below), whose sum is σ = 179389440. Its totient is φ = 79056000.

The previous prime is 122979107. The next prime is 122979127. The reversal of 122979115 is 511979221.

It is not a de Polignac number, because 122979115 - 2³ = 122979107 is a prime.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 in 31 ways as a sum of consecutive naturals, for example, 66250 + ... + 68080.

It is an arithmetic number, because the mean of its divisors is an integer number (5605920).

Almost surely, 2^122979115 is an apocalyptic number.

122979115 is a deficient number, since it is larger than the sum of its proper divisors (56410325).

122979115 is a wasteful number, since it uses less digits than its factorization.

122979115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963.

The product of its digits is 11340, while the sum is 37.

The square root of 122979115 is about 11089.5948979212. The cubic root of 122979115 is about 497.2908340182.

It can be divided in two parts, 12297 and 9115, that added together give a palindrome (21412).

The spelling of 122979115 in words is "one hundred twenty-two million, nine hundred seventy-nine thousand, one hundred fifteen".