122431664 has 20 divisors (see below), whose sum is σ = 242729256. Its totient is φ = 59791872.

The previous prime is 122431657. The next prime is 122431711. The reversal of 122431664 is 466134221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88289 + ... + 89664.

Almost surely, 2^122431664 is an apocalyptic number.

It is an amenable number.

122431664 is a deficient number, since it is larger than the sum of its proper divisors (120297592).

122431664 is a wasteful number, since it uses less digits than its factorization.

122431664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178004 (or 177998 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 122431664 is about 11064.8842741350. The cubic root of 122431664 is about 496.5518268687.

Adding to 122431664 its reverse (466134221), we get a palindrome (588565885).

The spelling of 122431664 in words is "one hundred twenty-two million, four hundred thirty-one thousand, six hundred sixty-four".