9131513087 has 8 divisors (see below), whose sum is σ = 9419272800. Its totient is φ = 8845909344.

The previous prime is 9131513081. The next prime is 9131513089. The reversal of 9131513087 is 7803151319.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9131513087 - 2¹⁸ = 9131250943 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 9131513087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9131513081) 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, 530387 + ... + 547332.

It is an arithmetic number, because the mean of its divisors is an integer number (1177409100).

Almost surely, 2^9131513087 is an apocalyptic number.

9131513087 is a deficient number, since it is larger than the sum of its proper divisors (287759713).

9131513087 is a wasteful number, since it uses less digits than its factorization.

9131513087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077985.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 9131513087 is about 95558.9508471080. The cubic root of 9131513087 is about 2090.1666562007.

The spelling of 9131513087 in words is "nine billion, one hundred thirty-one million, five hundred thirteen thousand, eighty-seven".