1255393159 has 2 divisors, whose sum is σ = 1255393160. Its totient is φ = 1255393158.

The previous prime is 1255393147. The next prime is 1255393193. The reversal of 1255393159 is 9513935521.

It is a weak prime.

It is an emirp because it is prime and its reverse (9513935521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1255393159 - 2⁷ = 1255393031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1255393129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627696579 + 627696580.

It is an arithmetic number, because the mean of its divisors is an integer number (627696580).

Almost surely, 2^1255393159 is an apocalyptic number.

1255393159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255393159 is an equidigital number, since it uses as much as digits as its factorization.

1255393159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 182250, while the sum is 43.

The square root of 1255393159 is about 35431.5277542473. The cubic root of 1255393159 is about 1078.7643501244.

The spelling of 1255393159 in words is "one billion, two hundred fifty-five million, three hundred ninety-three thousand, one hundred fifty-nine".