122590864 has 40 divisors (see below), whose sum is σ = 267482880. Its totient is φ = 53923200.

The previous prime is 122590837. The next prime is 122590873. The reversal of 122590864 is 468095221.

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

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 7 ways as a sum of consecutive naturals, for example, 5779 + ... + 16690.

It is an arithmetic number, because the mean of its divisors is an integer number (6687072).

Almost surely, 2^122590864 is an apocalyptic number.

It is an amenable number.

122590864 is an abundant number, since it is smaller than the sum of its proper divisors (144892016).

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

122590864 is a wasteful number, since it uses less digits than its factorization.

122590864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22519 (or 22513 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 122590864 is about 11072.0758667921. The cubic root of 122590864 is about 496.7669586115.

The spelling of 122590864 in words is "one hundred twenty-two million, five hundred ninety thousand, eight hundred sixty-four".