99124281 has 12 divisors (see below), whose sum is σ = 143270400. Its totient is φ = 66040920.

The previous prime is 99124279. The next prime is 99124301. The reversal of 99124281 is 18242199.

It is not a de Polignac number, because 99124281 - 2¹ = 99124279 is a prime.

It is a super-2 number, since 2×99124281² = 19651246167533922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99124211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19296 + ... + 23886.

It is an arithmetic number, because the mean of its divisors is an integer number (11939200).

Almost surely, 2^99124281 is an apocalyptic number.

It is an amenable number.

99124281 is a deficient number, since it is larger than the sum of its proper divisors (44146119).

99124281 is a wasteful number, since it uses less digits than its factorization.

99124281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6996 (or 6993 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 99124281 is about 9956.1177674835. The cubic root of 99124281 is about 462.7999997634.

The spelling of 99124281 in words is "ninety-nine million, one hundred twenty-four thousand, two hundred eighty-one".