1144857443 has 8 divisors (see below), whose sum is σ = 1177070400. Its totient is φ = 1112971840.

The previous prime is 1144857433. The next prime is 1144857449. The reversal of 1144857443 is 3447584411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1144857443 - 2⁶ = 1144857379 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1144857443.

It is not an unprimeable number, because it can be changed into a prime (1144857449) 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, 74738 + ... + 88743.

It is an arithmetic number, because the mean of its divisors is an integer number (147133800).

Almost surely, 2^1144857443 is an apocalyptic number.

1144857443 is a deficient number, since it is larger than the sum of its proper divisors (32212957).

1144857443 is a wasteful number, since it uses less digits than its factorization.

1144857443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163677.

The product of its digits is 215040, while the sum is 41.

The square root of 1144857443 is about 33835.7420932363. The cubic root of 1144857443 is about 1046.1255374336.

The spelling of 1144857443 in words is "one billion, one hundred forty-four million, eight hundred fifty-seven thousand, four hundred forty-three".