122516646 has 64 divisors (see below), whose sum is σ = 286261248. Its totient is φ = 34237728.

The previous prime is 122516633. The next prime is 122516659. The reversal of 122516646 is 646615221.

It is an interprime number because it is at equal distance from previous prime (122516633) and next prime (122516659).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 549291 + ... + 549513.

It is an arithmetic number, because the mean of its divisors is an integer number (4472832).

Almost surely, 2^122516646 is an apocalyptic number.

122516646 is an abundant number, since it is smaller than the sum of its proper divisors (163744602).

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

122516646 is a wasteful number, since it uses less digits than its factorization.

122516646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465.

The product of its digits is 17280, while the sum is 33.

The square root of 122516646 is about 11068.7237746725. The cubic root of 122516646 is about 496.6666887878. Note that the first 4 decimals are identical.

It can be divided in two parts, 1225 and 16646, that added together give a palindrome (17871).

The spelling of 122516646 in words is "one hundred twenty-two million, five hundred sixteen thousand, six hundred forty-six".