23135251 has 2 divisors, whose sum is σ = 23135252. Its totient is φ = 23135250.

The previous prime is 23135197. The next prime is 23135303. The reversal of 23135251 is 15253132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23135251 - 2¹⁵ = 23102483 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23135051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11567625 + 11567626.

It is an arithmetic number, because the mean of its divisors is an integer number (11567626).

Almost surely, 2^23135251 is an apocalyptic number.

23135251 is a deficient number, since it is larger than the sum of its proper divisors (1).

23135251 is an equidigital number, since it uses as much as digits as its factorization.

23135251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 900, while the sum is 22.

The square root of 23135251 is about 4809.9117455521. The cubic root of 23135251 is about 284.9430521283.

Adding to 23135251 its reverse (15253132), we get a palindrome (38388383).

The spelling of 23135251 in words is "twenty-three million, one hundred thirty-five thousand, two hundred fifty-one".