23149933 has 2 divisors, whose sum is σ = 23149934. Its totient is φ = 23149932.

The previous prime is 23149921. The next prime is 23149939. The reversal of 23149933 is 33994132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16662724 + 6487209 = 4082^2 + 2547^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23149933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23149939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11574966 + 11574967.

It is an arithmetic number, because the mean of its divisors is an integer number (11574967).

Almost surely, 2^23149933 is an apocalyptic number.

It is an amenable number.

23149933 is a deficient number, since it is larger than the sum of its proper divisors (1).

23149933 is an equidigital number, since it uses as much as digits as its factorization.

23149933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496, while the sum is 34.

The square root of 23149933 is about 4811.4377269170. The cubic root of 23149933 is about 285.0033158535.

The spelling of 23149933 in words is "twenty-three million, one hundred forty-nine thousand, nine hundred thirty-three".