1144079209 has 32 divisors (see below), whose sum is σ = 1494775296. Its totient is φ = 849761280.

The previous prime is 1144079201. The next prime is 1144079213. The reversal of 1144079209 is 9029704411.

It is a cyclic number.

It is not a de Polignac number, because 1144079209 - 2³ = 1144079201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1144079201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 836244 + ... + 837610.

It is an arithmetic number, because the mean of its divisors is an integer number (46711728).

Almost surely, 2^1144079209 is an apocalyptic number.

It is an amenable number.

1144079209 is a deficient number, since it is larger than the sum of its proper divisors (350696087).

1144079209 is a wasteful number, since it uses less digits than its factorization.

1144079209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 1144079209 is about 33824.2399618971. The cubic root of 1144079209 is about 1045.8884438669. Note that the first 3 decimals are identical.

The spelling of 1144079209 in words is "one billion, one hundred forty-four million, seventy-nine thousand, two hundred nine".