3131162540 has 24 divisors (see below), whose sum is σ = 7173209232. Its totient is φ = 1138604480.

The previous prime is 3131162491. The next prime is 3131162549. The reversal of 3131162540 is 452611313.

It is a super-3 number, since 3×3131162540³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (3131162549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7116059 + ... + 7116498.

It is an arithmetic number, because the mean of its divisors is an integer number (298883718).

Almost surely, 2^3131162540 is an apocalyptic number.

It is an amenable number.

3131162540 is an abundant number, since it is smaller than the sum of its proper divisors (4042046692).

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

3131162540 is a wasteful number, since it uses less digits than its factorization.

3131162540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14232577 (or 14232575 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 3131162540 is about 55956.7917236147. The cubic root of 3131162540 is about 1462.9692714754.

Adding to 3131162540 its reverse (452611313), we get a palindrome (3583773853).

The spelling of 3131162540 in words is "three billion, one hundred thirty-one million, one hundred sixty-two thousand, five hundred forty".