122564636 has 6 divisors (see below), whose sum is σ = 214488120. Its totient is φ = 61282316.

The previous prime is 122564593. The next prime is 122564711. The reversal of 122564636 is 636465221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 122564596 and 122564605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15320576 + ... + 15320583.

It is an arithmetic number, because the mean of its divisors is an integer number (35748020).

Almost surely, 2^122564636 is an apocalyptic number.

It is an amenable number.

122564636 is a deficient number, since it is larger than the sum of its proper divisors (91923484).

122564636 is a wasteful number, since it uses less digits than its factorization.

122564636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30641163 (or 30641161 counting only the distinct ones).

The product of its digits is 51840, while the sum is 35.

The square root of 122564636 is about 11070.8913823594. The cubic root of 122564636 is about 496.7315287470.

The spelling of 122564636 in words is "one hundred twenty-two million, five hundred sixty-four thousand, six hundred thirty-six".