23188027 has 2 divisors, whose sum is σ = 23188028. Its totient is φ = 23188026.

The previous prime is 23188021. The next prime is 23188049. The reversal of 23188027 is 72088132.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23188027 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23188027.

It is not a weakly prime, because it can be changed into another prime (23188021) 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, 11594013 + 11594014.

It is an arithmetic number, because the mean of its divisors is an integer number (11594014).

Almost surely, 2^23188027 is an apocalyptic number.

23188027 is a deficient number, since it is larger than the sum of its proper divisors (1).

23188027 is an equidigital number, since it uses as much as digits as its factorization.

23188027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 23188027 is about 4815.3947917071. The cubic root of 23188027 is about 285.1595577256.

The spelling of 23188027 in words is "twenty-three million, one hundred eighty-eight thousand, twenty-seven".