23406137 has 2 divisors, whose sum is σ = 23406138. Its totient is φ = 23406136.

The previous prime is 23406113. The next prime is 23406139. The reversal of 23406137 is 73160432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22505536 + 900601 = 4744^2 + 949^2 .

It is a cyclic number.

It is not a de Polignac number, because 23406137 - 2¹⁴ = 23389753 is a prime.

Together with 23406139, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23406139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11703068 + 11703069.

It is an arithmetic number, because the mean of its divisors is an integer number (11703069).

Almost surely, 2^23406137 is an apocalyptic number.

It is an amenable number.

23406137 is a deficient number, since it is larger than the sum of its proper divisors (1).

23406137 is an equidigital number, since it uses as much as digits as its factorization.

23406137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 23406137 is about 4837.9889416988. The cubic root of 23406137 is about 286.0508532652.

Adding to 23406137 its reverse (73160432), we get a palindrome (96566569).

The spelling of 23406137 in words is "twenty-three million, four hundred six thousand, one hundred thirty-seven".