1144001142809 has 16 divisors (see below), whose sum is σ = 1337404876800. Its totient is φ = 958158576144.

The previous prime is 1144001142803. The next prime is 1144001142827. The reversal of 1144001142809 is 9082411004411.

It is not a de Polignac number, because 1144001142809 - 2²⁰ = 1144000094233 is a prime.

It is a super-2 number, since 2×1144001142809² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1144001142803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2605079 + ... + 3012380.

It is an arithmetic number, because the mean of its divisors is an integer number (83587804800).

Almost surely, 2^{1144001142809} is an apocalyptic number.

It is an amenable number.

1144001142809 is a deficient number, since it is larger than the sum of its proper divisors (193403733991).

1144001142809 is an equidigital number, since it uses as much as digits as its factorization.

1144001142809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5618132.

The product of its (nonzero) digits is 9216, while the sum is 35.

The spelling of 1144001142809 in words is "one trillion, one hundred forty-four billion, one million, one hundred forty-two thousand, eight hundred nine".