1366413 has 4 divisors (see below), whose sum is σ = 1821888. Its totient is φ = 910940.

The previous prime is 1366397. The next prime is 1366427. The reversal of 1366413 is 3146631.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3146631 = 3 ⋅1048877.

It is a cyclic number.

It is not a de Polignac number, because 1366413 - 2⁴ = 1366397 is a prime.

It is a D-number.

1366413 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227733 + ... + 227738.

It is an arithmetic number, because the mean of its divisors is an integer number (455472).

2^1366413 is an apocalyptic number.

It is an amenable number.

1366413 is a deficient number, since it is larger than the sum of its proper divisors (455475).

1366413 is an equidigital number, since it uses as much as digits as its factorization.

1366413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455474.

The product of its digits is 1296, while the sum is 24.

The square root of 1366413 is about 1168.9366963185. The cubic root of 1366413 is about 110.9670383422.

The spelling of 1366413 in words is "one million, three hundred sixty-six thousand, four hundred thirteen".