8231145523251 has 48 divisors (see below), whose sum is σ = 12790693843200. Its totient is φ = 4694666703552.

The previous prime is 8231145523213. The next prime is 8231145523267. The reversal of 8231145523251 is 1523255411328.

It is a happy number.

It is not a de Polignac number, because 8231145523251 - 2⁷ = 8231145523123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8231145523201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 425746581 + ... + 425765913.

It is an arithmetic number, because the mean of its divisors is an integer number (266472788400).

Almost surely, 2^{8231145523251} is an apocalyptic number.

8231145523251 is a deficient number, since it is larger than the sum of its proper divisors (4559548319949).

8231145523251 is a wasteful number, since it uses less digits than its factorization.

8231145523251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24648 (or 24641 counting only the distinct ones).

The product of its digits is 288000, while the sum is 42.

The spelling of 8231145523251 in words is "eight trillion, two hundred thirty-one billion, one hundred forty-five million, five hundred twenty-three thousand, two hundred fifty-one".