123915464 has 8 divisors (see below), whose sum is σ = 232341510. Its totient is φ = 61957728.

The previous prime is 123915443. The next prime is 123915481. The reversal of 123915464 is 464519321.

It can be written as a sum of positive squares in only one way, i.e., 105062500 + 18852964 = 10250^2 + 4342^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7744709 + ... + 7744724.

Almost surely, 2^123915464 is an apocalyptic number.

It is an amenable number.

123915464 is a deficient number, since it is larger than the sum of its proper divisors (108426046).

123915464 is a wasteful number, since it uses less digits than its factorization.

123915464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15489439 (or 15489435 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 123915464 is about 11131.7323000511. The cubic root of 123915464 is about 498.5497496146.

The spelling of 123915464 in words is "one hundred twenty-three million, nine hundred fifteen thousand, four hundred sixty-four".