9315131513 has 4 divisors (see below), whose sum is σ = 9350550528. Its totient is φ = 9279712500.

The previous prime is 9315131479. The next prime is 9315131519. The reversal of 9315131513 is 3151315139.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9315131513 - 2³² = 5020164217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9315131513.

It is not an unprimeable number, because it can be changed into a prime (9315131519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17709113 + ... + 17709638.

It is an arithmetic number, because the mean of its divisors is an integer number (2337637632).

Almost surely, 2^9315131513 is an apocalyptic number.

It is an amenable number.

9315131513 is a deficient number, since it is larger than the sum of its proper divisors (35419015).

9315131513 is a wasteful number, since it uses less digits than its factorization.

9315131513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35419014.

The product of its digits is 6075, while the sum is 32.

The square root of 9315131513 is about 96514.9289643835. The cubic root of 9315131513 is about 2104.0836270626.

The spelling of 9315131513 in words is "nine billion, three hundred fifteen million, one hundred thirty-one thousand, five hundred thirteen".