99985159 has 2 divisors, whose sum is σ = 99985160. Its totient is φ = 99985158.

The previous prime is 99985157. The next prime is 99985217. The reversal of 99985159 is 95158999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99985159 - 2¹ = 99985157 is a prime.

Together with 99985157, 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 (99985153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49992579 + 49992580.

It is an arithmetic number, because the mean of its divisors is an integer number (49992580).

Almost surely, 2^99985159 is an apocalyptic number.

99985159 is a deficient number, since it is larger than the sum of its proper divisors (1).

99985159 is an equidigital number, since it uses as much as digits as its factorization.

99985159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1312200, while the sum is 55.

The square root of 99985159 is about 9999.2579224660. The cubic root of 99985159 is about 464.1359202853.

The spelling of 99985159 in words is "ninety-nine million, nine hundred eighty-five thousand, one hundred fifty-nine".