123012664 has 16 divisors (see below), whose sum is σ = 238602600. Its totient is φ = 59385312.

The previous prime is 123012649. The next prime is 123012691. The reversal of 123012664 is 466210321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264882 + ... + 265345.

Almost surely, 2^123012664 is an apocalyptic number.

It is an amenable number.

123012664 is a deficient number, since it is larger than the sum of its proper divisors (115589936).

123012664 is a wasteful number, since it uses less digits than its factorization.

123012664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530262 (or 530258 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 123012664 is about 11091.1074289270. The cubic root of 123012664 is about 497.3360506208.

Adding to 123012664 its reverse (466210321), we get a palindrome (589222985).

The spelling of 123012664 in words is "one hundred twenty-three million, twelve thousand, six hundred sixty-four".