1366223 has 8 divisors (see below), whose sum is σ = 1437696. Its totient is φ = 1295800.

The previous prime is 1366213. The next prime is 1366241. The reversal of 1366223 is 3226631.

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

It is a cyclic number.

It is not a de Polignac number, because 1366223 - 2⁶ = 1366159 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4238 + ... + 4548.

It is an arithmetic number, because the mean of its divisors is an integer number (179712).

2^1366223 is an apocalyptic number.

1366223 is a deficient number, since it is larger than the sum of its proper divisors (71473).

1366223 is a wasteful number, since it uses less digits than its factorization.

1366223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525.

The product of its digits is 1296, while the sum is 23.

The square root of 1366223 is about 1168.8554230528. The cubic root of 1366223 is about 110.9618947741.

The spelling of 1366223 in words is "one million, three hundred sixty-six thousand, two hundred twenty-three".