1393045 has 4 divisors (see below), whose sum is σ = 1671660. Its totient is φ = 1114432.

The previous prime is 1393043. The next prime is 1393069. The reversal of 1393045 is 5403931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5403931 = 13 ⋅415687.

It can be written as a sum of positive squares in 2 ways, for example, as 715716 + 677329 = 846^2 + 823^2 .

It is a cyclic number.

It is not a de Polignac number, because 1393045 - 2¹ = 1393043 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1393043) 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, 139300 + ... + 139309.

It is an arithmetic number, because the mean of its divisors is an integer number (417915).

2^1393045 is an apocalyptic number.

It is an amenable number.

1393045 is a deficient number, since it is larger than the sum of its proper divisors (278615).

1393045 is an equidigital number, since it uses as much as digits as its factorization.

1393045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278614.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 1393045 is about 1180.2732734414. The cubic root of 1393045 is about 111.6833370325.

Adding to 1393045 its reverse (5403931), we get a palindrome (6796976).

The spelling of 1393045 in words is "one million, three hundred ninety-three thousand, forty-five".