1345576313 has 4 divisors (see below), whose sum is σ = 1345700688. Its totient is φ = 1345451940.

The previous prime is 1345576289. The next prime is 1345576319. The reversal of 1345576313 is 3136755431.

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 1345576313 - 2³⁰ = 271834489 is a prime.

It is a super-2 number, since 2×1345576313² = 3621151228213347938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345576319) 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, 44231 + ... + 68172.

It is an arithmetic number, because the mean of its divisors is an integer number (336425172).

Almost surely, 2^1345576313 is an apocalyptic number.

It is an amenable number.

1345576313 is a deficient number, since it is larger than the sum of its proper divisors (124375).

1345576313 is a wasteful number, since it uses less digits than its factorization.

1345576313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124374.

The product of its digits is 113400, while the sum is 38.

The square root of 1345576313 is about 36682.0979907093. The cubic root of 1345576313 is about 1104.0009432644. Note that the first 3 decimals are identical.

The spelling of 1345576313 in words is "one billion, three hundred forty-five million, five hundred seventy-six thousand, three hundred thirteen".