1244345 has 4 divisors (see below), whose sum is σ = 1493220. Its totient is φ = 995472.

The previous prime is 1244333. The next prime is 1244357. The reversal of 1244345 is 5434421.

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 (1244333) and next prime (1244357).

It can be written as a sum of positive squares in 2 ways, for example, as 861184 + 383161 = 928^2 + 619^2 .

It is a cyclic number.

It is not a de Polignac number, because 1244345 - 2¹⁶ = 1178809 is a prime.

It is a d-powerful number, because it can be written as 1 + 2¹¹ + 4³ + 4⁷ + 3¹¹ + 4¹⁰ + 5³ .

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 1244345.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124430 + ... + 124439.

It is an arithmetic number, because the mean of its divisors is an integer number (373305).

2^1244345 is an apocalyptic number.

It is an amenable number.

1244345 is a deficient number, since it is larger than the sum of its proper divisors (248875).

1244345 is an equidigital number, since it uses as much as digits as its factorization.

1244345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248874.

The product of its digits is 1920, while the sum is 23.

The square root of 1244345 is about 1115.5021290881. The cubic root of 1244345 is about 107.5590445423.

Adding to 1244345 its reverse (5434421), we get a palindrome (6678766).

It can be divided in two parts, 124434 and 5, that multiplied together give a triangular number (622170 = T₁₁₁₅).

The spelling of 1244345 in words is "one million, two hundred forty-four thousand, three hundred forty-five".