1255321339 has 2 divisors, whose sum is σ = 1255321340. Its totient is φ = 1255321338.

The previous prime is 1255321247. The next prime is 1255321349. The reversal of 1255321339 is 9331235521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1255321339 - 2²⁹ = 718450427 is a prime.

It is not a weakly prime, because it can be changed into another prime (1255321349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627660669 + 627660670.

It is an arithmetic number, because the mean of its divisors is an integer number (627660670).

Almost surely, 2^1255321339 is an apocalyptic number.

1255321339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255321339 is an equidigital number, since it uses as much as digits as its factorization.

1255321339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24300, while the sum is 34.

The square root of 1255321339 is about 35430.5142356133. The cubic root of 1255321339 is about 1078.7437779946.

The spelling of 1255321339 in words is "one billion, two hundred fifty-five million, three hundred twenty-one thousand, three hundred thirty-nine".