3131224648 has 16 divisors (see below), whose sum is σ = 5872548780. Its totient is φ = 1565211648.

The previous prime is 3131224631. The next prime is 3131224667. The reversal of 3131224648 is 8464221313.

It can be written as a sum of positive squares in 2 ways, for example, as 2307649444 + 823575204 = 48038^2 + 28698^2 .

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, 15465 + ... + 80632.

Almost surely, 2^3131224648 is an apocalyptic number.

It is an amenable number.

3131224648 is a deficient number, since it is larger than the sum of its proper divisors (2741324132).

3131224648 is a wasteful number, since it uses less digits than its factorization.

3131224648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100176 (or 100172 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 3131224648 is about 55957.3466847741. The cubic root of 3131224648 is about 1462.9789442933.

The spelling of 3131224648 in words is "three billion, one hundred thirty-one million, two hundred twenty-four thousand, six hundred forty-eight".