1313492347 has 4 divisors (see below), whose sum is σ = 1329317640. Its totient is φ = 1297667056.

The previous prime is 1313492339. The next prime is 1313492387. The reversal of 1313492347 is 7432943131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1313492347 - 2³ = 1313492339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313492317) 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 3 ways as a sum of consecutive naturals, for example, 7912522 + ... + 7912687.

It is an arithmetic number, because the mean of its divisors is an integer number (332329410).

Almost surely, 2^1313492347 is an apocalyptic number.

1313492347 is a deficient number, since it is larger than the sum of its proper divisors (15825293).

1313492347 is an equidigital number, since it uses as much as digits as its factorization.

1313492347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15825292.

The product of its digits is 54432, while the sum is 37.

The square root of 1313492347 is about 36242.1349674657. The cubic root of 1313492347 is about 1095.1556521364.

The spelling of 1313492347 in words is "one billion, three hundred thirteen million, four hundred ninety-two thousand, three hundred forty-seven".