122436621 has 12 divisors (see below), whose sum is σ = 178127040. Its totient is φ = 81036360.

The previous prime is 122436617. The next prime is 122436653. The reversal of 122436621 is 126634221.

122436621 is a `hidden beast` number, since 1 + 2 + 2 + 4 + 36 + 621 = 666.

It is not a de Polignac number, because 122436621 - 2² = 122436617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122436221) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 47685 + ... + 50186.

It is an arithmetic number, because the mean of its divisors is an integer number (14843920).

Almost surely, 2^122436621 is an apocalyptic number.

It is an amenable number.

122436621 is a deficient number, since it is larger than the sum of its proper divisors (55690419).

122436621 is a wasteful number, since it uses less digits than its factorization.

122436621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98016 (or 98013 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 122436621 is about 11065.1082687880. The cubic root of 122436621 is about 496.5585282238.

The spelling of 122436621 in words is "one hundred twenty-two million, four hundred thirty-six thousand, six hundred twenty-one".