1366343 has 4 divisors (see below), whose sum is σ = 1490568. Its totient is φ = 1242120.

The previous prime is 1366333. The next prime is 1366349. The reversal of 1366343 is 3436631.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1366343 - 2⁴ = 1366327 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366349) 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, 62096 + ... + 62117.

It is an arithmetic number, because the mean of its divisors is an integer number (372642).

2^1366343 is an apocalyptic number.

1366343 is a deficient number, since it is larger than the sum of its proper divisors (124225).

1366343 is a wasteful number, since it uses less digits than its factorization.

1366343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124224.

The product of its digits is 3888, while the sum is 26.

The square root of 1366343 is about 1168.9067541938. The cubic root of 1366343 is about 110.9651433989.

The spelling of 1366343 in words is "one million, three hundred sixty-six thousand, three hundred forty-three".