1144684279 has 8 divisors (see below), whose sum is σ = 1205301680. Its totient is φ = 1084104000.

The previous prime is 1144684267. The next prime is 1144684297. The reversal of 1144684279 is 9724864411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1144684279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144684249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72649 + ... + 86989.

It is an arithmetic number, because the mean of its divisors is an integer number (150662710).

Almost surely, 2^1144684279 is an apocalyptic number.

1144684279 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1144684279 is a deficient number, since it is larger than the sum of its proper divisors (60617401).

1144684279 is a wasteful number, since it uses less digits than its factorization.

1144684279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18561.

The product of its digits is 387072, while the sum is 46.

The square root of 1144684279 is about 33833.1831047568. The cubic root of 1144684279 is about 1046.0727912984.

The spelling of 1144684279 in words is "one billion, one hundred forty-four million, six hundred eighty-four thousand, two hundred seventy-nine".