99109233 has 12 divisors (see below), whose sum is σ = 144071668. Its totient is φ = 65651040.

The previous prime is 99109193. The next prime is 99109291. The reversal of 99109233 is 33290199.

It can be written as a sum of positive squares in 2 ways, for example, as 49449024 + 49660209 = 7032^2 + 7047^2 .

It is not a de Polignac number, because 99109233 - 2¹⁴ = 99092849 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (99109033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33658 + ... + 36483.

Almost surely, 2^99109233 is an apocalyptic number.

It is an amenable number.

99109233 is a deficient number, since it is larger than the sum of its proper divisors (44962435).

99109233 is a wasteful number, since it uses less digits than its factorization.

99109233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70304 (or 70301 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 36.

The square root of 99109233 is about 9955.3620225485. The cubic root of 99109233 is about 462.7765794445.

The spelling of 99109233 in words is "ninety-nine million, one hundred nine thousand, two hundred thirty-three".