3130987540 has 24 divisors (see below), whose sum is σ = 6581632680. Its totient is φ = 1251145728.

The previous prime is 3130987513. The next prime is 3130987547. The reversal of 3130987540 is 457890313.

It can be written as a sum of positive squares in 4 ways, for example, as 429898756 + 2701088784 = 20734^2 + 51972^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3130987493 and 3130987502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3130987547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57397 + ... + 97756.

It is an arithmetic number, because the mean of its divisors is an integer number (274234695).

Almost surely, 2^3130987540 is an apocalyptic number.

It is an amenable number.

3130987540 is an abundant number, since it is smaller than the sum of its proper divisors (3450645140).

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

3130987540 is a wasteful number, since it uses less digits than its factorization.

3130987540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156171 (or 156169 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 3130987540 is about 55955.2279952463. The cubic root of 3130987540 is about 1462.9420159551.

The spelling of 3130987540 in words is "three billion, one hundred thirty million, nine hundred eighty-seven thousand, five hundred forty".