1313340765 has 32 divisors (see below), whose sum is σ = 2294061696. Its totient is φ = 636303360.

The previous prime is 1313340757. The next prime is 1313340799. The reversal of 1313340765 is 5670433131.

It is not a de Polignac number, because 1313340765 - 2³ = 1313340757 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 353397 + ... + 357093.

It is an arithmetic number, because the mean of its divisors is an integer number (71689428).

Almost surely, 2^1313340765 is an apocalyptic number.

1313340765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1313340765 is a deficient number, since it is larger than the sum of its proper divisors (980720931).

1313340765 is a wasteful number, since it uses less digits than its factorization.

1313340765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5869.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 1313340765 is about 36240.0436671922. The cubic root of 1313340765 is about 1095.1135221434.

Adding to 1313340765 its reverse (5670433131), we get a palindrome (6983773896).

The spelling of 1313340765 in words is "one billion, three hundred thirteen million, three hundred forty thousand, seven hundred sixty-five".