1366073 has 4 divisors (see below), whose sum is σ = 1368948. Its totient is φ = 1363200.

The previous prime is 1366031. The next prime is 1366087. The reversal of 1366073 is 3706631.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1183744 + 182329 = 1088^2 + 427^2 .

It is a cyclic number.

It is not a de Polignac number, because 1366073 - 2⁶ = 1366009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1366093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536 + ... + 1737.

It is an arithmetic number, because the mean of its divisors is an integer number (342237).

2^1366073 is an apocalyptic number.

It is an amenable number.

1366073 is a deficient number, since it is larger than the sum of its proper divisors (2875).

1366073 is an equidigital number, since it uses as much as digits as its factorization.

1366073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2874.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 1366073 is about 1168.7912559563. The cubic root of 1366073 is about 110.9578337257.

The spelling of 1366073 in words is "one million, three hundred sixty-six thousand, seventy-three".