253667129 has 2 divisors, whose sum is σ = 253667130. Its totient is φ = 253667128.

The previous prime is 253667101. The next prime is 253667143. The reversal of 253667129 is 921766352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 253605625 + 61504 = 15925^2 + 248^2 .

It is a cyclic number.

It is not a de Polignac number, because 253667129 - 2⁸ = 253666873 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (253667329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126833564 + 126833565.

It is an arithmetic number, because the mean of its divisors is an integer number (126833565).

Almost surely, 2^253667129 is an apocalyptic number.

It is an amenable number.

253667129 is a deficient number, since it is larger than the sum of its proper divisors (1).

253667129 is an equidigital number, since it uses as much as digits as its factorization.

253667129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 41.

The square root of 253667129 is about 15926.9309347407. The cubic root of 253667129 is about 633.0257812067.

The spelling of 253667129 in words is "two hundred fifty-three million, six hundred sixty-seven thousand, one hundred twenty-nine".