3131742456 has 48 divisors (see below), whose sum is σ = 8711047800. Its totient is φ = 1015699392.

The previous prime is 3131742433. The next prime is 3131742473. The reversal of 3131742456 is 6542471313.

3131742456 is a `hidden beast` number, since 3 + 131 + 74 + 2 + 456 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 3131742456.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 585126 + ... + 590453.

Almost surely, 2^3131742456 is an apocalyptic number.

3131742456 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3131742456 is an abundant number, since it is smaller than the sum of its proper divisors (5579305344).

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

3131742456 is a wasteful number, since it uses less digits than its factorization.

3131742456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175628 (or 1175621 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 3131742456 is about 55961.9733033066. The cubic root of 3131742456 is about 1463.0595837163.

The spelling of 3131742456 in words is "three billion, one hundred thirty-one million, seven hundred forty-two thousand, four hundred fifty-six".