122508564 has 12 divisors (see below), whose sum is σ = 285853344. Its totient is φ = 40836184.

The previous prime is 122508563. The next prime is 122508569. The reversal of 122508564 is 465805221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122508563) 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 3 ways as a sum of consecutive naturals, for example, 5104512 + ... + 5104535.

It is an arithmetic number, because the mean of its divisors is an integer number (23821112).

Almost surely, 2^122508564 is an apocalyptic number.

It is an amenable number.

122508564 is an abundant number, since it is smaller than the sum of its proper divisors (163344780).

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

122508564 is a wasteful number, since it uses less digits than its factorization.

122508564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10209054 (or 10209052 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 122508564 is about 11068.3586859118. The cubic root of 122508564 is about 496.6557674189.

The spelling of 122508564 in words is "one hundred twenty-two million, five hundred eight thousand, five hundred sixty-four".