23442137 has 2 divisors, whose sum is σ = 23442138. Its totient is φ = 23442136.

The previous prime is 23442113. The next prime is 23442151. The reversal of 23442137 is 73124432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16556761 + 6885376 = 4069^2 + 2624^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23442137 is a prime.

It is not a weakly prime, because it can be changed into another prime (23442157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11721068 + 11721069.

It is an arithmetic number, because the mean of its divisors is an integer number (11721069).

Almost surely, 2^23442137 is an apocalyptic number.

It is an amenable number.

23442137 is a deficient number, since it is larger than the sum of its proper divisors (1).

23442137 is an equidigital number, since it uses as much as digits as its factorization.

23442137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 26.

The square root of 23442137 is about 4841.7080663749. The cubic root of 23442137 is about 286.1974324247.

Adding to 23442137 its reverse (73124432), we get a palindrome (96566569).

The spelling of 23442137 in words is "twenty-three million, four hundred forty-two thousand, one hundred thirty-seven".