253143169 has 2 divisors, whose sum is σ = 253143170. Its totient is φ = 253143168.

The previous prime is 253143151. The next prime is 253143197. The reversal of 253143169 is 961341352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 159769600 + 93373569 = 12640^2 + 9663^2 .

It is a cyclic number.

It is not a de Polignac number, because 253143169 - 2⁷ = 253143041 is a prime.

It is a super-2 number, since 2×253143169² = 128162928022725122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (253143119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126571584 + 126571585.

It is an arithmetic number, because the mean of its divisors is an integer number (126571585).

Almost surely, 2^253143169 is an apocalyptic number.

It is an amenable number.

253143169 is a deficient number, since it is larger than the sum of its proper divisors (1).

253143169 is an equidigital number, since it uses as much as digits as its factorization.

253143169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 34.

The square root of 253143169 is about 15910.4735630339. The cubic root of 253143169 is about 632.5896337531.

The spelling of 253143169 in words is "two hundred fifty-three million, one hundred forty-three thousand, one hundred sixty-nine".