122455636 has 6 divisors (see below), whose sum is σ = 214297370. Its totient is φ = 61227816.

The previous prime is 122455631. The next prime is 122455637. The reversal of 122455636 is 636554221.

It can be written as a sum of positive squares in only one way, i.e., 120868036 + 1587600 = 10994^2 + 1260^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122455631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15306951 + ... + 15306958.

Almost surely, 2^122455636 is an apocalyptic number.

It is an amenable number.

122455636 is a deficient number, since it is larger than the sum of its proper divisors (91841734).

122455636 is a wasteful number, since it uses less digits than its factorization.

122455636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30613913 (or 30613911 counting only the distinct ones).

The product of its digits is 43200, while the sum is 34.

The square root of 122455636 is about 11065.9674678719. The cubic root of 122455636 is about 496.5842328743.

The spelling of 122455636 in words is "one hundred twenty-two million, four hundred fifty-five thousand, six hundred thirty-six".