3131134540 has 24 divisors (see below), whose sum is σ = 6787492992. Its totient is φ = 1212051840.

The previous prime is 3131134481. The next prime is 3131134547. The reversal of 3131134540 is 454311313.

It is not an unprimeable number, because it can be changed into a prime (3131134547) 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, 2524489 + ... + 2525728.

It is an arithmetic number, because the mean of its divisors is an integer number (282812208).

Almost surely, 2^3131134540 is an apocalyptic number.

It is an amenable number.

3131134540 is an abundant number, since it is smaller than the sum of its proper divisors (3656358452).

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

3131134540 is a wasteful number, since it uses less digits than its factorization.

3131134540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5050257 (or 5050255 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 3131134540 is about 55956.5415300124. The cubic root of 3131134540 is about 1462.9649106604.

Adding to 3131134540 its reverse (454311313), we get a palindrome (3585445853).

The spelling of 3131134540 in words is "three billion, one hundred thirty-one million, one hundred thirty-four thousand, five hundred forty".