1255039 has 2 divisors, whose sum is σ = 1255040. Its totient is φ = 1255038.

The previous prime is 1255021. The next prime is 1255049. The reversal of 1255039 is 9305521.

It is a strong prime.

It is an emirp because it is prime and its reverse (9305521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1255039 - 2⁹ = 1254527 is a prime.

1255039 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1255049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627519 + 627520.

It is an arithmetic number, because the mean of its divisors is an integer number (627520).

2^1255039 is an apocalyptic number.

1255039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255039 is an equidigital number, since it uses as much as digits as its factorization.

1255039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 1255039 is about 1120.2852315370. The cubic root of 1255039 is about 107.8662897170.

The spelling of 1255039 in words is "one million, two hundred fifty-five thousand, thirty-nine".