253135957 has 2 divisors, whose sum is σ = 253135958. Its totient is φ = 253135956.

The previous prime is 253135889. The next prime is 253135991. The reversal of 253135957 is 759531352.

253135957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 250620561 + 2515396 = 15831^2 + 1586^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253135957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253130957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126567978 + 126567979.

It is an arithmetic number, because the mean of its divisors is an integer number (126567979).

Almost surely, 2^253135957 is an apocalyptic number.

It is an amenable number.

253135957 is a deficient number, since it is larger than the sum of its proper divisors (1).

253135957 is an equidigital number, since it uses as much as digits as its factorization.

253135957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141750, while the sum is 40.

The square root of 253135957 is about 15910.2469182599. The cubic root of 253135957 is about 632.5836262438.

The spelling of 253135957 in words is "two hundred fifty-three million, one hundred thirty-five thousand, nine hundred fifty-seven".