122979712 has 64 divisors (see below), whose sum is σ = 262792800. Its totient is φ = 57176064.

The previous prime is 122979707. The next prime is 122979733. The reversal of 122979712 is 217979221.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108364 + ... + 109492.

Almost surely, 2^122979712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122979712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131396400).

122979712 is an abundant number, since it is smaller than the sum of its proper divisors (139813088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122979712 is a wasteful number, since it uses less digits than its factorization.

122979712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203 (or 1191 counting only the distinct ones).

The product of its digits is 31752, while the sum is 40.

The square root of 122979712 is about 11089.6218150124. The cubic root of 122979712 is about 497.2916387135.

The spelling of 122979712 in words is "one hundred twenty-two million, nine hundred seventy-nine thousand, seven hundred twelve".