1313866 has 8 divisors (see below), whose sum is σ = 1977444. Its totient is φ = 654720.

The previous prime is 1313863. The next prime is 1313881. The reversal of 1313866 is 6683131.

It can be written as a sum of positive squares in 2 ways, for example, as 1092025 + 221841 = 1045^2 + 471^2 .

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 (1313863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225 + ... + 1636.

2^1313866 is an apocalyptic number.

1313866 is a deficient number, since it is larger than the sum of its proper divisors (663578).

1313866 is a wasteful number, since it uses less digits than its factorization.

1313866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216.

The product of its digits is 2592, while the sum is 28.

The square root of 1313866 is about 1146.2399399777. The cubic root of 1313866 is about 109.5259489665.

Adding to 1313866 its reverse (6683131), we get a palindrome (7996997).

The spelling of 1313866 in words is "one million, three hundred thirteen thousand, eight hundred sixty-six".