3131815468 has 12 divisors (see below), whose sum is σ = 5530959280. Its totient is φ = 1551541392.

The previous prime is 3131815459. The next prime is 3131815471. The reversal of 3131815468 is 8645181313.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 3131815468.

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, 3591096 + ... + 3591967.

Almost surely, 2^3131815468 is an apocalyptic number.

It is an amenable number.

3131815468 is a deficient number, since it is larger than the sum of its proper divisors (2399143812).

3131815468 is a wasteful number, since it uses less digits than its factorization.

3131815468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7183176 (or 7183174 counting only the distinct ones).

The product of its digits is 69120, while the sum is 40.

The square root of 3131815468 is about 55962.6256353292. The cubic root of 3131815468 is about 1463.0709533269.

The spelling of 3131815468 in words is "three billion, one hundred thirty-one million, eight hundred fifteen thousand, four hundred sixty-eight".