1144813479 has 8 divisors (see below), whose sum is σ = 1606755840. Its totient is φ = 723040056.

The previous prime is 1144813469. The next prime is 1144813493. The reversal of 1144813479 is 9743184411.

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

It is not a de Polignac number, because 1144813479 - 2¹³ = 1144805287 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 1144813479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144813429) 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 7 ways as a sum of consecutive naturals, for example, 10042167 + ... + 10042280.

It is an arithmetic number, because the mean of its divisors is an integer number (200844480).

Almost surely, 2^1144813479 is an apocalyptic number.

1144813479 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1144813479 is a deficient number, since it is larger than the sum of its proper divisors (461942361).

1144813479 is a wasteful number, since it uses less digits than its factorization.

1144813479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20084469.

The product of its digits is 96768, while the sum is 42.

The square root of 1144813479 is about 33835.0924189664. The cubic root of 1144813479 is about 1046.1121464063.

The spelling of 1144813479 in words is "one billion, one hundred forty-four million, eight hundred thirteen thousand, four hundred seventy-nine".