1313340866 has 8 divisors (see below), whose sum is σ = 1971557820. Its totient is φ = 656154928.

The previous prime is 1313340859. The next prime is 1313340869. The reversal of 1313340866 is 6680433131.

It can be written as a sum of positive squares in 2 ways, for example, as 1304726641 + 8614225 = 36121^2 + 2935^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1313340869) 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, 254561 + ... + 259668.

Almost surely, 2^1313340866 is an apocalyptic number.

1313340866 is a deficient number, since it is larger than the sum of its proper divisors (658216954).

1313340866 is a wasteful number, since it uses less digits than its factorization.

1313340866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515508.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 1313340866 is about 36240.0450606784. The cubic root of 1313340866 is about 1095.1135502159.

Adding to 1313340866 its reverse (6680433131), we get a palindrome (7993773997).

The spelling of 1313340866 in words is "one billion, three hundred thirteen million, three hundred forty thousand, eight hundred sixty-six".