3131736412 has 72 divisors (see below), whose sum is σ = 6483335040. Its totient is φ = 1319603040.

The previous prime is 3131736371. The next prime is 3131736449. The reversal of 3131736412 is 2146371313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5059039 + ... + 5059657.

It is an arithmetic number, because the mean of its divisors is an integer number (90046320).

Almost surely, 2^3131736412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3131736412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3241667520).

3131736412 is an abundant number, since it is smaller than the sum of its proper divisors (3351598628).

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

3131736412 is a wasteful number, since it uses less digits than its factorization.

3131736412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031 (or 1022 counting only the distinct ones).

The product of its digits is 9072, while the sum is 31.

The square root of 3131736412 is about 55961.9193023256. The cubic root of 3131736412 is about 1463.0586425217.

The spelling of 3131736412 in words is "three billion, one hundred thirty-one million, seven hundred thirty-six thousand, four hundred twelve".