1244555 has 16 divisors (see below), whose sum is σ = 1651104. Its totient is φ = 894720.

The previous prime is 1244543. The next prime is 1244567. The reversal of 1244555 is 5554421.

It is an interprime number because it is at equal distance from previous prime (1244543) and next prime (1244567).

It is not a de Polignac number, because 1244555 - 2¹⁶ = 1179019 is a prime.

It is a plaindrome in base 10 and base 14.

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 15 ways as a sum of consecutive naturals, for example, 2432 + ... + 2898.

It is an arithmetic number, because the mean of its divisors is an integer number (103194).

2^1244555 is an apocalyptic number.

1244555 is a deficient number, since it is larger than the sum of its proper divisors (406549).

1244555 is a wasteful number, since it uses less digits than its factorization.

1244555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526.

The product of its digits is 4000, while the sum is 26.

The square root of 1244555 is about 1115.5962531310. The cubic root of 1244555 is about 107.5650948817.

Adding to 1244555 its reverse (5554421), we get a palindrome (6798976).

The spelling of 1244555 in words is "one million, two hundred forty-four thousand, five hundred fifty-five".