1345613317 has 8 divisors (see below), whose sum is σ = 1379470680. Its totient is φ = 1311805440.

The previous prime is 1345613309. The next prime is 1345613363. The reversal of 1345613317 is 7133165431.

It can be written as a sum of positive squares in 4 ways, for example, as 343954116 + 1001659201 = 18546^2 + 31649^2 .

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 1345613317 - 2³ = 1345613309 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 (1345613377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46123 + ... + 69415.

It is an arithmetic number, because the mean of its divisors is an integer number (172433835).

Almost surely, 2^1345613317 is an apocalyptic number.

It is an amenable number.

1345613317 is a deficient number, since it is larger than the sum of its proper divisors (33857363).

1345613317 is a wasteful number, since it uses less digits than its factorization.

1345613317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24743.

The product of its digits is 22680, while the sum is 34.

The square root of 1345613317 is about 36682.6023749679. The cubic root of 1345613317 is about 1104.0110633584.

Adding to 1345613317 its reverse (7133165431), we get a palindrome (8478778748).

The spelling of 1345613317 in words is "one billion, three hundred forty-five million, six hundred thirteen thousand, three hundred seventeen".