3131413240 has 16 divisors (see below), whose sum is σ = 7045679880. Its totient is φ = 1252565280.

The previous prime is 3131413217. The next prime is 3131413249. The reversal of 3131413240 is 423141313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131413249) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 39142626 + ... + 39142705.

Almost surely, 2^3131413240 is an apocalyptic number.

It is an amenable number.

3131413240 is an abundant number, since it is smaller than the sum of its proper divisors (3914266640).

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

3131413240 is a wasteful number, since it uses less digits than its factorization.

3131413240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78285342 (or 78285338 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 3131413240 is about 55959.0318000589. The cubic root of 3131413240 is about 1463.0083151856.

Adding to 3131413240 its reverse (423141313), we get a palindrome (3554554553).

The spelling of 3131413240 in words is "three billion, one hundred thirty-one million, four hundred thirteen thousand, two hundred forty".