23133569 has 2 divisors, whose sum is σ = 23133570. Its totient is φ = 23133568.

The previous prime is 23133563. The next prime is 23133577. The reversal of 23133569 is 96533132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16908544 + 6225025 = 4112^2 + 2495^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23133569 is a prime.

It is a super-2 number, since 2×23133569² = 1070324029355522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (23133563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11566784 + 11566785.

It is an arithmetic number, because the mean of its divisors is an integer number (11566785).

Almost surely, 2^23133569 is an apocalyptic number.

It is an amenable number.

23133569 is a deficient number, since it is larger than the sum of its proper divisors (1).

23133569 is an equidigital number, since it uses as much as digits as its factorization.

23133569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14580, while the sum is 32.

The square root of 23133569 is about 4809.7368950910. The cubic root of 23133569 is about 284.9361465649.

The spelling of 23133569 in words is "twenty-three million, one hundred thirty-three thousand, five hundred sixty-nine".