99989159 has 2 divisors, whose sum is σ = 99989160. Its totient is φ = 99989158.

The previous prime is 99989117. The next prime is 99989171. The reversal of 99989159 is 95198999.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99989159 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 99989098 and 99989107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99989179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49994579 + 49994580.

It is an arithmetic number, because the mean of its divisors is an integer number (49994580).

Almost surely, 2^99989159 is an apocalyptic number.

99989159 is a deficient number, since it is larger than the sum of its proper divisors (1).

99989159 is an equidigital number, since it uses as much as digits as its factorization.

99989159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2361960, while the sum is 59.

The square root of 99989159 is about 9999.4579353083. The cubic root of 99989159 is about 464.1421096003.

The spelling of 99989159 in words is "ninety-nine million, nine hundred eighty-nine thousand, one hundred fifty-nine".