9131396523 has 16 divisors (see below), whose sum is σ = 12828777600. Its totient is φ = 5761445760.

The previous prime is 9131396453. The next prime is 9131396531. The reversal of 9131396523 is 3256931319.

It is not a de Polignac number, because 9131396523 - 2¹⁰ = 9131395499 is a prime.

It is a super-3 number, since 3×9131396523³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (9131396563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21873 + ... + 136898.

It is an arithmetic number, because the mean of its divisors is an integer number (801798600).

Almost surely, 2^9131396523 is an apocalyptic number.

9131396523 is a deficient number, since it is larger than the sum of its proper divisors (3697381077).

9131396523 is a wasteful number, since it uses less digits than its factorization.

9131396523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159802.

The product of its digits is 131220, while the sum is 42.

The square root of 9131396523 is about 95558.3409389259. The cubic root of 9131396523 is about 2090.1577624858.

The spelling of 9131396523 in words is "nine billion, one hundred thirty-one million, three hundred ninety-six thousand, five hundred twenty-three".