1253249 has 2 divisors, whose sum is σ = 1253250. Its totient is φ = 1253248.

The previous prime is 1253171. The next prime is 1253251. The reversal of 1253249 is 9423521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 970225 + 283024 = 985^2 + 532^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1253249 is a prime.

Together with 1253251, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1253279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626624 + 626625.

It is an arithmetic number, because the mean of its divisors is an integer number (626625).

2^1253249 is an apocalyptic number.

It is an amenable number.

1253249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253249 is an equidigital number, since it uses as much as digits as its factorization.

1253249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 26.

The square root of 1253249 is about 1119.4860427893. The cubic root of 1253249 is about 107.8149838677.

The spelling of 1253249 in words is "one million, two hundred fifty-three thousand, two hundred forty-nine".