253247 has 2 divisors, whose sum is σ = 253248. Its totient is φ = 253246.

The previous prime is 253243. The next prime is 253273. The reversal of 253247 is 742352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253247 - 2² = 253243 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126623 + 126624.

It is an arithmetic number, because the mean of its divisors is an integer number (126624).

2²⁵³²⁴⁷ is an apocalyptic number.

253247 is a deficient number, since it is larger than the sum of its proper divisors (1).

253247 is an equidigital number, since it uses as much as digits as its factorization.

253247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680, while the sum is 23.

The square root of 253247 is about 503.2365249065. The cubic root of 253247 is about 63.2676111083.

Adding to 253247 its reverse (742352), we get a palindrome (995599).

The spelling of 253247 in words is "two hundred fifty-three thousand, two hundred forty-seven".