23502091 has 2 divisors, whose sum is σ = 23502092. Its totient is φ = 23502090.

The previous prime is 23502071. The next prime is 23502097. The reversal of 23502091 is 19020532.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23502091 is a prime.

It is not a weakly prime, because it can be changed into another prime (23502097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11751045 + 11751046.

It is an arithmetic number, because the mean of its divisors is an integer number (11751046).

Almost surely, 2^23502091 is an apocalyptic number.

23502091 is a deficient number, since it is larger than the sum of its proper divisors (1).

23502091 is an equidigital number, since it uses as much as digits as its factorization.

23502091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 23502091 is about 4847.8955228016. The cubic root of 23502091 is about 286.4412110196.

The spelling of 23502091 in words is "twenty-three million, five hundred two thousand, ninety-one".