8517214091 has 2 divisors, whose sum is σ = 8517214092. Its totient is φ = 8517214090.

The previous prime is 8517214063. The next prime is 8517214093. The reversal of 8517214091 is 1904127158.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8517214091 - 2¹⁴ = 8517197707 is a prime.

It is a super-3 number, since 3×8517214091³ (a number of 31 digits) contains 333 as substring.

Together with 8517214093, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8517214093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4258607045 + 4258607046.

It is an arithmetic number, because the mean of its divisors is an integer number (4258607046).

Almost surely, 2^8517214091 is an apocalyptic number.

8517214091 is a deficient number, since it is larger than the sum of its proper divisors (1).

8517214091 is an equidigital number, since it uses as much as digits as its factorization.

8517214091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 8517214091 is about 92288.7538706640. The cubic root of 8517214091 is about 2042.2043079082.

The spelling of 8517214091 in words is "eight billion, five hundred seventeen million, two hundred fourteen thousand, ninety-one".