9131139522 has 54 divisors (see below), whose sum is σ = 20071964601. Its totient is φ = 3000063600.

The previous prime is 9131139517. The next prime is 9131139527. The reversal of 9131139522 is 2259311319.

9131139522 is a `hidden beast` number, since 9 + 13 + 113 + 9 + 522 = 666.

It is an interprime number because it is at equal distance from previous prime (9131139517) and next prime (9131139527).

It can be written as a sum of positive squares in 2 ways, for example, as 6337911321 + 2793228201 = 79611^2 + 52851^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=67569.

It is not an unprimeable number, because it can be changed into a prime (9131139527) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 40946703 + ... + 40946925.

Almost surely, 2^9131139522 is an apocalyptic number.

9131139522 is an abundant number, since it is smaller than the sum of its proper divisors (10940825079).

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

9131139522 is a wasteful number, since it uses less digits than its factorization.

9131139522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656 (or 329 counting only the distinct ones).

The product of its digits is 14580, while the sum is 36.

The square root of 9131139522 is about 95556.9961959877. The cubic root of 9131139522 is about 2090.1381533028.

The spelling of 9131139522 in words is "nine billion, one hundred thirty-one million, one hundred thirty-nine thousand, five hundred twenty-two".