3131064644 has 12 divisors (see below), whose sum is σ = 5767750800. Its totient is φ = 1483135848.

The previous prime is 3131064631. The next prime is 3131064661. The reversal of 3131064644 is 4464601313.

It is a self number, because there is not a number n which added to its sum of digits gives 3131064644.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20599034 + ... + 20599185.

It is an arithmetic number, because the mean of its divisors is an integer number (480645900).

Almost surely, 2^3131064644 is an apocalyptic number.

It is an amenable number.

3131064644 is a deficient number, since it is larger than the sum of its proper divisors (2636686156).

3131064644 is a wasteful number, since it uses less digits than its factorization.

3131064644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41198242 (or 41198240 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 3131064644 is about 55955.9169704152. The cubic root of 3131064644 is about 1462.9540247068.

Adding to 3131064644 its reverse (4464601313), we get a palindrome (7595665957).

The spelling of 3131064644 in words is "three billion, one hundred thirty-one million, sixty-four thousand, six hundred forty-four".