99268281 has 32 divisors (see below), whose sum is σ = 168600320. Its totient is φ = 56547072.

The previous prime is 99268261. The next prime is 99268283. The reversal of 99268281 is 18286299.

99268281 = T₄₄₉ + T₄₅₀ + ... + T₈₈₁.

It is not a de Polignac number, because 99268281 - 2⁹ = 99267769 is a prime.

It is a super-2 number, since 2×99268281² = 19708383225389922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99268283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81231 + ... + 82443.

It is an arithmetic number, because the mean of its divisors is an integer number (5268760).

Almost surely, 2^99268281 is an apocalyptic number.

It is an amenable number.

99268281 is a deficient number, since it is larger than the sum of its proper divisors (69332039).

99268281 is a wasteful number, since it uses less digits than its factorization.

99268281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662 (or 1656 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 99268281 is about 9963.3468774303. The cubic root of 99268281 is about 463.0239978729.

The spelling of 99268281 in words is "ninety-nine million, two hundred sixty-eight thousand, two hundred eighty-one".