253123237 has 2 divisors, whose sum is σ = 253123238. Its totient is φ = 253123236.

The previous prime is 253123229. The next prime is 253123243. The reversal of 253123237 is 732321352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199628641 + 53494596 = 14129^2 + 7314^2 .

It is a cyclic number.

It is not a de Polignac number, because 253123237 - 2³ = 253123229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253123207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126561618 + 126561619.

It is an arithmetic number, because the mean of its divisors is an integer number (126561619).

Almost surely, 2^253123237 is an apocalyptic number.

It is an amenable number.

253123237 is a deficient number, since it is larger than the sum of its proper divisors (1).

253123237 is an equidigital number, since it uses as much as digits as its factorization.

253123237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 28.

The square root of 253123237 is about 15909.8471708562. The cubic root of 253123237 is about 632.5730303588.

Adding to 253123237 its reverse (732321352), we get a palindrome (985444589).

The spelling of 253123237 in words is "two hundred fifty-three million, one hundred twenty-three thousand, two hundred thirty-seven".