1312347859 has 8 divisors (see below), whose sum is σ = 1316700000. Its totient is φ = 1308004032.

The previous prime is 1312347853. The next prime is 1312347863. The reversal of 1312347859 is 9587432131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1312347859 - 2¹⁵ = 1312315091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312347853) 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 in 7 ways as a sum of consecutive naturals, for example, 476017 + ... + 478765.

It is an arithmetic number, because the mean of its divisors is an integer number (164587500).

Almost surely, 2^1312347859 is an apocalyptic number.

1312347859 is a deficient number, since it is larger than the sum of its proper divisors (4352141).

1312347859 is an equidigital number, since it uses as much as digits as its factorization.

1312347859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4157.

The product of its digits is 181440, while the sum is 43.

The square root of 1312347859 is about 36226.3420593358. The cubic root of 1312347859 is about 1094.8374782946.

The spelling of 1312347859 in words is "one billion, three hundred twelve million, three hundred forty-seven thousand, eight hundred fifty-nine".