1144412243 has 4 divisors (see below), whose sum is σ = 1232443968. Its totient is φ = 1056380520.

The previous prime is 1144412177. The next prime is 1144412251. The reversal of 1144412243 is 3422144411.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1144412243 - 2¹² = 1144408147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144412263) by changing a digit.

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, 44015843 + ... + 44015868.

It is an arithmetic number, because the mean of its divisors is an integer number (308110992).

Almost surely, 2^1144412243 is an apocalyptic number.

1144412243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1144412243 is a deficient number, since it is larger than the sum of its proper divisors (88031725).

1144412243 is an equidigital number, since it uses as much as digits as its factorization.

1144412243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88031724.

The product of its digits is 3072, while the sum is 26.

The square root of 1144412243 is about 33829.1626115693. The cubic root of 1144412243 is about 1045.9899177909.

Adding to 1144412243 its reverse (3422144411), we get a palindrome (4566556654).

The spelling of 1144412243 in words is "one billion, one hundred forty-four million, four hundred twelve thousand, two hundred forty-three".