23173049 has 2 divisors, whose sum is σ = 23173050. Its totient is φ = 23173048.

The previous prime is 23173039. The next prime is 23173067. The reversal of 23173049 is 94037132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19536400 + 3636649 = 4420^2 + 1907^2 .

It is a cyclic number.

It is not a de Polignac number, because 23173049 - 2²⁴ = 6395833 is a prime.

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 (23173039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11586524 + 11586525.

It is an arithmetic number, because the mean of its divisors is an integer number (11586525).

Almost surely, 2^23173049 is an apocalyptic number.

It is an amenable number.

23173049 is a deficient number, since it is larger than the sum of its proper divisors (1).

23173049 is an equidigital number, since it uses as much as digits as its factorization.

23173049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 23173049 is about 4813.8393201269. The cubic root of 23173049 is about 285.0981461501.

The spelling of 23173049 in words is "twenty-three million, one hundred seventy-three thousand, forty-nine".