23001257 has 2 divisors, whose sum is σ = 23001258. Its totient is φ = 23001256.

The previous prime is 23001241. The next prime is 23001269. The reversal of 23001257 is 75210032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22477081 + 524176 = 4741^2 + 724^2 .

It is a cyclic number.

It is not a de Polignac number, because 23001257 - 2⁴ = 23001241 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23001227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11500628 + 11500629.

It is an arithmetic number, because the mean of its divisors is an integer number (11500629).

Almost surely, 2^23001257 is an apocalyptic number.

It is an amenable number.

23001257 is a deficient number, since it is larger than the sum of its proper divisors (1).

23001257 is an equidigital number, since it uses as much as digits as its factorization.

23001257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 23001257 is about 4795.9625728314. The cubic root of 23001257 is about 284.3918786745.

Adding to 23001257 its reverse (75210032), we get a palindrome (98211289).

The spelling of 23001257 in words is "twenty-three million, one thousand, two hundred fifty-seven".