1144969279 has 16 divisors (see below), whose sum is σ = 1270644480. Its totient is φ = 1026812160.

The previous prime is 1144969277. The next prime is 1144969291. The reversal of 1144969279 is 9729694411.

It is a cyclic number.

It is not a de Polignac number, because 1144969279 - 2¹ = 1144969277 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 (1144969277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28884 + ... + 55894.

It is an arithmetic number, because the mean of its divisors is an integer number (79415280).

Almost surely, 2^1144969279 is an apocalyptic number.

1144969279 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1144969279 is a deficient number, since it is larger than the sum of its proper divisors (125675201).

1144969279 is a wasteful number, since it uses less digits than its factorization.

1144969279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27150.

The product of its digits is 979776, while the sum is 52.

The square root of 1144969279 is about 33837.3946839883. The cubic root of 1144969279 is about 1046.1596000985.

The spelling of 1144969279 in words is "one billion, one hundred forty-four million, nine hundred sixty-nine thousand, two hundred seventy-nine".