1255423159 has 2 divisors, whose sum is σ = 1255423160. Its totient is φ = 1255423158.

The previous prime is 1255423139. The next prime is 1255423163. The reversal of 1255423159 is 9513245521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1255423159 - 2¹⁵ = 1255390391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1255423139) 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, 627711579 + 627711580.

It is an arithmetic number, because the mean of its divisors is an integer number (627711580).

Almost surely, 2^1255423159 is an apocalyptic number.

1255423159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255423159 is an equidigital number, since it uses as much as digits as its factorization.

1255423159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54000, while the sum is 37.

The square root of 1255423159 is about 35431.9511034885. The cubic root of 1255423159 is about 1078.7729430959.

The spelling of 1255423159 in words is "one billion, two hundred fifty-five million, four hundred twenty-three thousand, one hundred fifty-nine".