8125198231 has 12 divisors (see below), whose sum is σ = 8417334520. Its totient is φ = 7841040480.

The previous prime is 8125198219. The next prime is 8125198241. The reversal of 8125198231 is 1328915218.

It is not a de Polignac number, because 8125198231 - 2⁵ = 8125198199 is a prime.

It is a super-2 number, since 2×8125198231² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8125198241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147640 + ... + 195058.

Almost surely, 2^8125198231 is an apocalyptic number.

8125198231 is a deficient number, since it is larger than the sum of its proper divisors (292136289).

8125198231 is an equidigital number, since it uses as much as digits as its factorization.

8125198231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47586 (or 47533 counting only the distinct ones).

The product of its digits is 34560, while the sum is 40.

The square root of 8125198231 is about 90139.8814676390. The cubic root of 8125198231 is about 2010.3792285459.

The spelling of 8125198231 in words is "eight billion, one hundred twenty-five million, one hundred ninety-eight thousand, two hundred thirty-one".