8151922931 has 2 divisors, whose sum is σ = 8151922932. Its totient is φ = 8151922930.

The previous prime is 8151922907. The next prime is 8151922969. The reversal of 8151922931 is 1392291518.

8151922931 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8151922931 - 2¹⁰ = 8151921907 is a prime.

It is a super-2 number, since 2×8151922931² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8151922631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4075961465 + 4075961466.

It is an arithmetic number, because the mean of its divisors is an integer number (4075961466).

Almost surely, 2^8151922931 is an apocalyptic number.

8151922931 is a deficient number, since it is larger than the sum of its proper divisors (1).

8151922931 is an equidigital number, since it uses as much as digits as its factorization.

8151922931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 41.

The square root of 8151922931 is about 90287.9999280082. Note that the first 4 decimals coincide. The cubic root of 8151922931 is about 2012.5809383031.

The spelling of 8151922931 in words is "eight billion, one hundred fifty-one million, nine hundred twenty-two thousand, nine hundred thirty-one".