3145783131 has 6 divisors (see below), whose sum is σ = 4543908980. Its totient is φ = 2097188748.

The previous prime is 3145783111. The next prime is 3145783133. The reversal of 3145783131 is 1313875413.

It is not a de Polignac number, because 3145783131 - 2⁵ = 3145783099 is a prime.

It is a super-2 number, since 2×3145783131² = 19791903014568326322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3145783133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 174765721 + ... + 174765738.

Almost surely, 2^3145783131 is an apocalyptic number.

3145783131 is a deficient number, since it is larger than the sum of its proper divisors (1398125849).

3145783131 is a wasteful number, since it uses less digits than its factorization.

3145783131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349531465 (or 349531462 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 3145783131 is about 56087.2813657428. The cubic root of 3145783131 is about 1465.2427901569.

The spelling of 3145783131 in words is "three billion, one hundred forty-five million, seven hundred eighty-three thousand, one hundred thirty-one".