122539964 has 12 divisors (see below), whose sum is σ = 221839800. Its totient is φ = 59157168.

The previous prime is 122539933. The next prime is 122539969. The reversal of 122539964 is 469935221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122539969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528074 + ... + 528305.

It is an arithmetic number, because the mean of its divisors is an integer number (18486650).

Almost surely, 2^122539964 is an apocalyptic number.

It is an amenable number.

122539964 is a deficient number, since it is larger than the sum of its proper divisors (99299836).

122539964 is a wasteful number, since it uses less digits than its factorization.

122539964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056412 (or 1056410 counting only the distinct ones).

The product of its digits is 116640, while the sum is 41.

The square root of 122539964 is about 11069.7770528588. Note that the first 3 decimals coincide. The cubic root of 122539964 is about 496.6981961777.

The spelling of 122539964 in words is "one hundred twenty-two million, five hundred thirty-nine thousand, nine hundred sixty-four".