1363776313 has 4 divisors (see below), whose sum is σ = 1363866868. Its totient is φ = 1363685760.

The previous prime is 1363776269. The next prime is 1363776331. The reversal of 1363776313 is 3136773631.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 724040464 + 639735849 = 26908^2 + 25293^2 .

It is a cyclic number.

It is not a de Polignac number, because 1363776313 - 2²⁵ = 1330221881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1363776013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16656 + ... + 54817.

It is an arithmetic number, because the mean of its divisors is an integer number (340966717).

Almost surely, 2^1363776313 is an apocalyptic number.

It is an amenable number.

1363776313 is a deficient number, since it is larger than the sum of its proper divisors (90555).

1363776313 is an equidigital number, since it uses as much as digits as its factorization.

1363776313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90554.

The product of its digits is 142884, while the sum is 40.

The square root of 1363776313 is about 36929.3421685250. The cubic root of 1363776313 is about 1108.9561685530.

The spelling of 1363776313 in words is "one billion, three hundred sixty-three million, seven hundred seventy-six thousand, three hundred thirteen".