99911259 has 16 divisors (see below), whose sum is σ = 169162240. Its totient is φ = 57092040.

The previous prime is 99911197. The next prime is 99911263. The reversal of 99911259 is 95211999.

It is not a de Polignac number, because 99911259 - 2¹¹ = 99909211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99915259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264127 + ... + 264504.

It is an arithmetic number, because the mean of its divisors is an integer number (10572640).

Almost surely, 2^99911259 is an apocalyptic number.

99911259 is a deficient number, since it is larger than the sum of its proper divisors (69250981).

99911259 is a wasteful number, since it uses less digits than its factorization.

99911259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528647 (or 528641 counting only the distinct ones).

The product of its digits is 65610, while the sum is 45.

The square root of 99911259 is about 9995.5619651924. The cubic root of 99911259 is about 464.0215429826.

The spelling of 99911259 in words is "ninety-nine million, nine hundred eleven thousand, two hundred fifty-nine".