5315131242 has 12 divisors (see below), whose sum is σ = 11516117730. Its totient is φ = 1771710408.

The previous prime is 5315131219. The next prime is 5315131303. The reversal of 5315131242 is 2421315135.

5315131242 is a `hidden beast` number, since 531 + 5 + 1 + 3 + 124 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3814421121 + 1500710121 = 61761^2 + 38739^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 147642517 + ... + 147642552.

Almost surely, 2^5315131242 is an apocalyptic number.

5315131242 is an abundant number, since it is smaller than the sum of its proper divisors (6200986488).

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

5315131242 is a wasteful number, since it uses less digits than its factorization.

5315131242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295285077 (or 295285074 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 5315131242 is about 72904.9466222972. The cubic root of 5315131242 is about 1745.1710400677.

Adding to 5315131242 its reverse (2421315135), we get a palindrome (7736446377).

The spelling of 5315131242 in words is "five billion, three hundred fifteen million, one hundred thirty-one thousand, two hundred forty-two".