1244553 has 16 divisors (see below), whose sum is σ = 1835136. Its totient is φ = 746240.

The previous prime is 1244543. The next prime is 1244567. The reversal of 1244553 is 3554421.

It is a cyclic number.

It is not a de Polignac number, because 1244553 - 2⁵ = 1244521 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

1244553 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1244533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 643 + ... + 1703.

It is an arithmetic number, because the mean of its divisors is an integer number (114696).

2^1244553 is an apocalyptic number.

It is an amenable number.

1244553 is a deficient number, since it is larger than the sum of its proper divisors (590583).

1244553 is a wasteful number, since it uses less digits than its factorization.

1244553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104.

The product of its digits is 2400, while the sum is 24.

The square root of 1244553 is about 1115.5953567490. The cubic root of 1244553 is about 107.5650372627.

Adding to 1244553 its reverse (3554421), we get a palindrome (4798974).

The spelling of 1244553 in words is "one million, two hundred forty-four thousand, five hundred fifty-three".