1312135159 has 2 divisors, whose sum is σ = 1312135160. Its totient is φ = 1312135158.

The previous prime is 1312135147. The next prime is 1312135183. The reversal of 1312135159 is 9515312131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1312135159 - 2⁵ = 1312135127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1312135159.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312175159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656067579 + 656067580.

It is an arithmetic number, because the mean of its divisors is an integer number (656067580).

Almost surely, 2^1312135159 is an apocalyptic number.

1312135159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312135159 is an equidigital number, since it uses as much as digits as its factorization.

1312135159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4050, while the sum is 31.

The square root of 1312135159 is about 36223.4062313306. The cubic root of 1312135159 is about 1094.7783261645.

The spelling of 1312135159 in words is "one billion, three hundred twelve million, one hundred thirty-five thousand, one hundred fifty-nine".