8137631325 has 12 divisors (see below), whose sum is σ = 13454217248. Its totient is φ = 4340070000.

The previous prime is 8137631269. The next prime is 8137631329. The reversal of 8137631325 is 5231367318.

It is not a de Polignac number, because 8137631325 - 2⁷ = 8137631197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8137631329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54250801 + ... + 54250950.

Almost surely, 2^8137631325 is an apocalyptic number.

It is an amenable number.

8137631325 is a deficient number, since it is larger than the sum of its proper divisors (5316585923).

8137631325 is a wasteful number, since it uses less digits than its factorization.

8137631325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108501764 (or 108501759 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The square root of 8137631325 is about 90208.8206607314. The cubic root of 8137631325 is about 2011.4041264373.

The spelling of 8137631325 in words is "eight billion, one hundred thirty-seven million, six hundred thirty-one thousand, three hundred twenty-five".