1144133999 has 4 divisors (see below), whose sum is σ = 1144288680. Its totient is φ = 1143979320.

The previous prime is 1144133993. The next prime is 1144134007. The reversal of 1144133999 is 9993314411.

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

It is a cyclic number.

It is not a de Polignac number, because 1144133999 - 2⁸ = 1144133743 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 (1144133993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65657 + ... + 81234.

It is an arithmetic number, because the mean of its divisors is an integer number (286072170).

Almost surely, 2^1144133999 is an apocalyptic number.

1144133999 is a deficient number, since it is larger than the sum of its proper divisors (154681).

1144133999 is an equidigital number, since it uses as much as digits as its factorization.

1144133999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154680.

The product of its digits is 104976, while the sum is 44.

The square root of 1144133999 is about 33825.0498743165. The cubic root of 1144133999 is about 1045.9051394805.

The spelling of 1144133999 in words is "one billion, one hundred forty-four million, one hundred thirty-three thousand, nine hundred ninety-nine".