23133287 has 2 divisors, whose sum is σ = 23133288. Its totient is φ = 23133286.

The previous prime is 23133283. The next prime is 23133301. The reversal of 23133287 is 78233132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23133287 - 2² = 23133283 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23133283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11566643 + 11566644.

It is an arithmetic number, because the mean of its divisors is an integer number (11566644).

Almost surely, 2^23133287 is an apocalyptic number.

23133287 is a deficient number, since it is larger than the sum of its proper divisors (1).

23133287 is an equidigital number, since it uses as much as digits as its factorization.

23133287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 29.

The square root of 23133287 is about 4809.7075794688. The cubic root of 23133287 is about 284.9349887623.

The spelling of 23133287 in words is "twenty-three million, one hundred thirty-three thousand, two hundred eighty-seven".