99718159 has 2 divisors, whose sum is σ = 99718160. Its totient is φ = 99718158.

The previous prime is 99718147. The next prime is 99718187. The reversal of 99718159 is 95181799.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99718159 is a prime.

It is a super-2 number, since 2×99718159² = 19887422468698562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99718139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49859079 + 49859080.

It is an arithmetic number, because the mean of its divisors is an integer number (49859080).

Almost surely, 2^99718159 is an apocalyptic number.

99718159 is a deficient number, since it is larger than the sum of its proper divisors (1).

99718159 is an equidigital number, since it uses as much as digits as its factorization.

99718159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 204120, while the sum is 49.

The square root of 99718159 is about 9985.8980066892. The cubic root of 99718159 is about 463.7224097040.

The spelling of 99718159 in words is "ninety-nine million, seven hundred eighteen thousand, one hundred fifty-nine".