1347931313 has 4 divisors (see below), whose sum is σ = 1351488240. Its totient is φ = 1344374388.

The previous prime is 1347931301. The next prime is 1347931447. The reversal of 1347931313 is 3131397431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1347931313 - 2⁴ = 1347931297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1347991313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1777895 + ... + 1778652.

It is an arithmetic number, because the mean of its divisors is an integer number (337872060).

Almost surely, 2^1347931313 is an apocalyptic number.

It is an amenable number.

1347931313 is a deficient number, since it is larger than the sum of its proper divisors (3556927).

1347931313 is an equidigital number, since it uses as much as digits as its factorization.

1347931313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3556926.

The product of its digits is 20412, while the sum is 35.

The square root of 1347931313 is about 36714.1840846287. The cubic root of 1347931313 is about 1104.6446344700.

The spelling of 1347931313 in words is "one billion, three hundred forty-seven million, nine hundred thirty-one thousand, three hundred thirteen".