23210249 has 2 divisors, whose sum is σ = 23210250. Its totient is φ = 23210248.

The previous prime is 23210189. The next prime is 23210251. The reversal of 23210249 is 94201232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16345849 + 6864400 = 4043^2 + 2620^2 .

It is a cyclic number.

It is not a de Polignac number, because 23210249 - 2⁸ = 23209993 is a prime.

It is a Sophie Germain prime.

Together with 23210251, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (23210269) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11605124 + 11605125.

It is an arithmetic number, because the mean of its divisors is an integer number (11605125).

Almost surely, 2^23210249 is an apocalyptic number.

It is an amenable number.

23210249 is a deficient number, since it is larger than the sum of its proper divisors (1).

23210249 is an equidigital number, since it uses as much as digits as its factorization.

23210249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 23210249 is about 4817.7016304458. The cubic root of 23210249 is about 285.2506218553.

The spelling of 23210249 in words is "twenty-three million, two hundred ten thousand, two hundred forty-nine".