253474129 has 2 divisors, whose sum is σ = 253474130. Its totient is φ = 253474128.

The previous prime is 253474051. The next prime is 253474139. The reversal of 253474129 is 921474352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 244859904 + 8614225 = 15648^2 + 2935^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253474129 is a prime.

It is not a weakly prime, because it can be changed into another prime (253474139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126737064 + 126737065.

It is an arithmetic number, because the mean of its divisors is an integer number (126737065).

Almost surely, 2^253474129 is an apocalyptic number.

It is an amenable number.

253474129 is a deficient number, since it is larger than the sum of its proper divisors (1).

253474129 is an equidigital number, since it uses as much as digits as its factorization.

253474129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 37.

The square root of 253474129 is about 15920.8708618593. The cubic root of 253474129 is about 632.8651967769.

The spelling of 253474129 in words is "two hundred fifty-three million, four hundred seventy-four thousand, one hundred twenty-nine".