23015233 has 2 divisors, whose sum is σ = 23015234. Its totient is φ = 23015232.

The previous prime is 23015207. The next prime is 23015243. The reversal of 23015233 is 33251032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12439729 + 10575504 = 3527^2 + 3252^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23015233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23015233.

It is not a weakly prime, because it can be changed into another prime (23015243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11507616 + 11507617.

It is an arithmetic number, because the mean of its divisors is an integer number (11507617).

Almost surely, 2^23015233 is an apocalyptic number.

It is an amenable number.

23015233 is a deficient number, since it is larger than the sum of its proper divisors (1).

23015233 is an equidigital number, since it uses as much as digits as its factorization.

23015233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 23015233 is about 4797.4194104748. The cubic root of 23015233 is about 284.4494676452.

Adding to 23015233 its reverse (33251032), we get a palindrome (56266265).

The spelling of 23015233 in words is "twenty-three million, fifteen thousand, two hundred thirty-three".