1144721099 has 8 divisors (see below), whose sum is σ = 1159340688. Its totient is φ = 1130190880.

The previous prime is 1144721093. The next prime is 1144721111. The reversal of 1144721099 is 9901274411.

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-1144721099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144721093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3629 + ... + 47985.

It is an arithmetic number, because the mean of its divisors is an integer number (144917586).

Almost surely, 2^1144721099 is an apocalyptic number.

1144721099 is a deficient number, since it is larger than the sum of its proper divisors (14619589).

1144721099 is a wasteful number, since it uses less digits than its factorization.

1144721099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44685.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 1144721099 is about 33833.7272407283. The cubic root of 1144721099 is about 1046.0840071966.

The spelling of 1144721099 in words is "one billion, one hundred forty-four million, seven hundred twenty-one thousand, ninety-nine".