1366546 has 4 divisors (see below), whose sum is σ = 2049822. Its totient is φ = 683272.

The previous prime is 1366543. The next prime is 1366549. The reversal of 1366546 is 6456631.

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

It is an interprime number because it is at equal distance from previous prime (1366543) and next prime (1366549).

It can be written as a sum of positive squares in only one way, i.e., 1185921 + 180625 = 1089^2 + 425^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1366543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341635 + ... + 341638.

2^1366546 is an apocalyptic number.

1366546 is a deficient number, since it is larger than the sum of its proper divisors (683276).

1366546 is an equidigital number, since it uses as much as digits as its factorization.

1366546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683275.

The product of its digits is 12960, while the sum is 31.

The square root of 1366546 is about 1168.9935842424. The cubic root of 1366546 is about 110.9706385561.

The spelling of 1366546 in words is "one million, three hundred sixty-six thousand, five hundred forty-six".