91023088159 has 2 divisors, whose sum is σ = 91023088160. Its totient is φ = 91023088158.

The previous prime is 91023088157. The next prime is 91023088183. The reversal of 91023088159 is 95188032019.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91023088159 - 2¹ = 91023088157 is a prime.

Together with 91023088157, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91023088157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45511544079 + 45511544080.

It is an arithmetic number, because the mean of its divisors is an integer number (45511544080).

Almost surely, 2^91023088159 is an apocalyptic number.

91023088159 is a deficient number, since it is larger than the sum of its proper divisors (1).

91023088159 is an equidigital number, since it uses as much as digits as its factorization.

91023088159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 46.

The spelling of 91023088159 in words is "ninety-one billion, twenty-three million, eighty-eight thousand, one hundred fifty-nine".