99224249 has 2 divisors, whose sum is σ = 99224250. Its totient is φ = 99224248.

The previous prime is 99224243. The next prime is 99224267. The reversal of 99224249 is 94242299.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61340224 + 37884025 = 7832^2 + 6155^2 .

It is a cyclic number.

It is not a de Polignac number, because 99224249 - 2⁴ = 99224233 is a prime.

It is a super-2 number, since 2×99224249² = 19690903179228002, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (99224243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49612124 + 49612125.

It is an arithmetic number, because the mean of its divisors is an integer number (49612125).

Almost surely, 2^99224249 is an apocalyptic number.

It is an amenable number.

99224249 is a deficient number, since it is larger than the sum of its proper divisors (1).

99224249 is an equidigital number, since it uses as much as digits as its factorization.

99224249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 41.

The square root of 99224249 is about 9961.1369331016. The cubic root of 99224249 is about 462.9555272340.

The spelling of 99224249 in words is "ninety-nine million, two hundred twenty-four thousand, two hundred forty-nine".