1316442613 has 4 divisors (see below), whose sum is σ = 1325160928. Its totient is φ = 1307724300.

The previous prime is 1316442601. The next prime is 1316442619. The reversal of 1316442613 is 3162446131.

It is a happy number.

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 1316442613 - 2²⁹ = 779571701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316442619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4358931 + ... + 4359232.

It is an arithmetic number, because the mean of its divisors is an integer number (331290232).

Almost surely, 2^1316442613 is an apocalyptic number.

It is an amenable number.

1316442613 is a deficient number, since it is larger than the sum of its proper divisors (8718315).

1316442613 is an equidigital number, since it uses as much as digits as its factorization.

1316442613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8718314.

The product of its digits is 10368, while the sum is 31.

The square root of 1316442613 is about 36282.8142927199. The cubic root of 1316442613 is about 1095.9749906049.

Adding to 1316442613 its reverse (3162446131), we get a palindrome (4478888744).

The spelling of 1316442613 in words is "one billion, three hundred sixteen million, four hundred forty-two thousand, six hundred thirteen".