23190539 has 2 divisors, whose sum is σ = 23190540. Its totient is φ = 23190538.

The previous prime is 23190491. The next prime is 23190569. The reversal of 23190539 is 93509132.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23190539 is a prime.

It is a super-2 number, since 2×23190539² = 1075602198221042, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23190569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11595269 + 11595270.

It is an arithmetic number, because the mean of its divisors is an integer number (11595270).

Almost surely, 2^23190539 is an apocalyptic number.

23190539 is a deficient number, since it is larger than the sum of its proper divisors (1).

23190539 is an equidigital number, since it uses as much as digits as its factorization.

23190539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 23190539 is about 4815.6556147632. The cubic root of 23190539 is about 285.1698546336.

The spelling of 23190539 in words is "twenty-three million, one hundred ninety thousand, five hundred thirty-nine".