23190137 has 2 divisors, whose sum is σ = 23190138. Its totient is φ = 23190136.

The previous prime is 23190119. The next prime is 23190149. The reversal of 23190137 is 73109132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15594601 + 7595536 = 3949^2 + 2756^2 .

It is a cyclic number.

It is not a de Polignac number, because 23190137 - 2¹⁰ = 23189113 is a prime.

It is not a weakly prime, because it can be changed into another prime (23190197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11595068 + 11595069.

It is an arithmetic number, because the mean of its divisors is an integer number (11595069).

Almost surely, 2^23190137 is an apocalyptic number.

It is an amenable number.

23190137 is a deficient number, since it is larger than the sum of its proper divisors (1).

23190137 is an equidigital number, since it uses as much as digits as its factorization.

23190137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 23190137 is about 4815.6138757172. The cubic root of 23190137 is about 285.1682068504.

Adding to 23190137 its reverse (73109132), we get a palindrome (96299269).

The spelling of 23190137 in words is "twenty-three million, one hundred ninety thousand, one hundred thirty-seven".