3131385474 has 48 divisors (see below), whose sum is σ = 7454719008. Its totient is φ = 873871488.

The previous prime is 3131385473. The next prime is 3131385487. The reversal of 3131385474 is 4745831313.

It is not an unprimeable number, because it can be changed into a prime (3131385473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111207 + ... + 136490.

It is an arithmetic number, because the mean of its divisors is an integer number (155306646).

Almost surely, 2^3131385474 is an apocalyptic number.

3131385474 is an abundant number, since it is smaller than the sum of its proper divisors (4323333534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3131385474 is a wasteful number, since it uses less digits than its factorization.

3131385474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247759 (or 247752 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 3131385474 is about 55958.7837072966. The cubic root of 3131385474 is about 1463.0039910455.

The spelling of 3131385474 in words is "three billion, one hundred thirty-one million, three hundred eighty-five thousand, four hundred seventy-four".