1340585313 has 4 divisors (see below), whose sum is σ = 1787447088. Its totient is φ = 893723540.

The previous prime is 1340585287. The next prime is 1340585321. The reversal of 1340585313 is 3135850431.

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 1340585313 - 2⁶ = 1340585249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1340585353) 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, 223430883 + ... + 223430888.

It is an arithmetic number, because the mean of its divisors is an integer number (446861772).

Almost surely, 2^1340585313 is an apocalyptic number.

It is an amenable number.

1340585313 is a deficient number, since it is larger than the sum of its proper divisors (446861775).

1340585313 is an equidigital number, since it uses as much as digits as its factorization.

1340585313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446861774.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 1340585313 is about 36614.0043289450. The cubic root of 1340585313 is about 1102.6342685390.

The spelling of 1340585313 in words is "one billion, three hundred forty million, five hundred eighty-five thousand, three hundred thirteen".