122756872 has 64 divisors (see below), whose sum is σ = 279619200. Its totient is φ = 49351680.

The previous prime is 122756867. The next prime is 122756897. The reversal of 122756872 is 278657221.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119722 + ... + 120742.

It is an arithmetic number, because the mean of its divisors is an integer number (4369050).

Almost surely, 2^122756872 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 122756872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139809600).

122756872 is an abundant number, since it is smaller than the sum of its proper divisors (156862328).

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

122756872 is a wasteful number, since it uses less digits than its factorization.

122756872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166 (or 1162 counting only the distinct ones).

The product of its digits is 94080, while the sum is 40.

The square root of 122756872 is about 11079.5700277583. The cubic root of 122756872 is about 496.9910919328.

The spelling of 122756872 in words is "one hundred twenty-two million, seven hundred fifty-six thousand, eight hundred seventy-two".