23137217 has 2 divisors, whose sum is σ = 23137218. Its totient is φ = 23137216.

The previous prime is 23137211. The next prime is 23137229. The reversal of 23137217 is 71273132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23049601 + 87616 = 4801^2 + 296^2 .

It is a cyclic number.

It is not a de Polignac number, because 23137217 - 2⁴ = 23137201 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23137211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11568608 + 11568609.

It is an arithmetic number, because the mean of its divisors is an integer number (11568609).

Almost surely, 2^23137217 is an apocalyptic number.

It is an amenable number.

23137217 is a deficient number, since it is larger than the sum of its proper divisors (1).

23137217 is an equidigital number, since it uses as much as digits as its factorization.

23137217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1764, while the sum is 26.

The square root of 23137217 is about 4810.1161108647. The cubic root of 23137217 is about 284.9511232485.

The spelling of 23137217 in words is "twenty-three million, one hundred thirty-seven thousand, two hundred seventeen".