1366045 has 8 divisors (see below), whose sum is σ = 1695960. Its totient is φ = 1055040.

The previous prime is 1366031. The next prime is 1366087. The reversal of 1366045 is 5406631.

It can be written as a sum of positive squares in 4 ways, for example, as 80089 + 1285956 = 283^2 + 1134^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-1366045 is a prime.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4566 + ... + 4855.

It is an arithmetic number, because the mean of its divisors is an integer number (211995).

2^1366045 is an apocalyptic number.

It is an amenable number.

1366045 is a deficient number, since it is larger than the sum of its proper divisors (329915).

1366045 is an equidigital number, since it uses as much as digits as its factorization.

1366045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9455.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1366045 is about 1168.7792777082. The cubic root of 1366045 is about 110.9570756304.

The spelling of 1366045 in words is "one million, three hundred sixty-six thousand, forty-five".