23144237 has 2 divisors, whose sum is σ = 23144238. Its totient is φ = 23144236.

The previous prime is 23144227. The next prime is 23144243. The reversal of 23144237 is 73244132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17522596 + 5621641 = 4186^2 + 2371^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23144237 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23144227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11572118 + 11572119.

It is an arithmetic number, because the mean of its divisors is an integer number (11572119).

Almost surely, 2^23144237 is an apocalyptic number.

It is an amenable number.

23144237 is a deficient number, since it is larger than the sum of its proper divisors (1).

23144237 is an equidigital number, since it uses as much as digits as its factorization.

23144237 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 23144237 is about 4810.8457676380. The cubic root of 23144237 is about 284.9799390825.

Adding to 23144237 its reverse (73244132), we get a palindrome (96388369).

The spelling of 23144237 in words is "twenty-three million, one hundred forty-four thousand, two hundred thirty-seven".