1144666159 has 16 divisors (see below), whose sum is σ = 1431922240. Its totient is φ = 890818560.

The previous prime is 1144666141. The next prime is 1144666169. The reversal of 1144666159 is 9516664411.

It is a cyclic number.

It is not a de Polignac number, because 1144666159 - 2⁹ = 1144665647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144666169) 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, 97554 + ... + 108655.

It is an arithmetic number, because the mean of its divisors is an integer number (89495140).

Almost surely, 2^1144666159 is an apocalyptic number.

1144666159 is a deficient number, since it is larger than the sum of its proper divisors (287256081).

1144666159 is a wasteful number, since it uses less digits than its factorization.

1144666159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206290.

The product of its digits is 155520, while the sum is 43.

The square root of 1144666159 is about 33832.9153192568. The cubic root of 1144666159 is about 1046.0672715991.

The spelling of 1144666159 in words is "one billion, one hundred forty-four million, six hundred sixty-six thousand, one hundred fifty-nine".