1255249 has 2 divisors, whose sum is σ = 1255250. Its totient is φ = 1255248.

The previous prime is 1255237. The next prime is 1255253. The reversal of 1255249 is 9425521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 960400 + 294849 = 980^2 + 543^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1255249 is a prime.

It is not a weakly prime, because it can be changed into another prime (1255259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627624 + 627625.

It is an arithmetic number, because the mean of its divisors is an integer number (627625).

2^1255249 is an apocalyptic number.

It is an amenable number.

1255249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255249 is an equidigital number, since it uses as much as digits as its factorization.

1255249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 28.

The square root of 1255249 is about 1120.3789537473. The cubic root of 1255249 is about 107.8723056409.

The spelling of 1255249 in words is "one million, two hundred fifty-five thousand, two hundred forty-nine".