1313218904 has 16 divisors (see below), whose sum is σ = 2469597000. Its totient is φ = 654659712.

The previous prime is 1313218903. The next prime is 1313218909. The reversal of 1313218904 is 4098123131.

It is a super-2 number, since 2×1313218904² = 3449087779645922432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313218903) 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, 240854 + ... + 246245.

Almost surely, 2^1313218904 is an apocalyptic number.

It is an amenable number.

1313218904 is a deficient number, since it is larger than the sum of its proper divisors (1156378096).

1313218904 is a wasteful number, since it uses less digits than its factorization.

1313218904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487442 (or 487438 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 1313218904 is about 36238.3623250279. The cubic root of 1313218904 is about 1095.0796503156.

The spelling of 1313218904 in words is "one billion, three hundred thirteen million, two hundred eighteen thousand, nine hundred four".