253439 has 2 divisors, whose sum is σ = 253440. Its totient is φ = 253438.

The previous prime is 253433. The next prime is 253447. The reversal of 253439 is 934352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253439 - 2⁴ = 253423 is a prime.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 253439.

It is not a weakly prime, because it can be changed into another prime (253433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126719 + 126720.

It is an arithmetic number, because the mean of its divisors is an integer number (126720).

2²⁵³⁴³⁹ is an apocalyptic number.

253439 is a deficient number, since it is larger than the sum of its proper divisors (1).

253439 is an equidigital number, since it uses as much as digits as its factorization.

253439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 26.

The square root of 253439 is about 503.4272539305. The cubic root of 253439 is about 63.2835959147.

It can be divided in two parts, 25343 and 9, that added together give a palindrome (25352).

The spelling of 253439 in words is "two hundred fifty-three thousand, four hundred thirty-nine".