1143044554165 has 8 divisors (see below), whose sum is σ = 1371659237208. Its totient is φ = 914431795200.

The previous prime is 1143044554111. The next prime is 1143044554177. The reversal of 1143044554165 is 5614554403411.

It can be written as a sum of positive squares in 4 ways, for example, as 10865560644 + 1132178993521 = 104238^2 + 1064039^2 .

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

It is not a de Polignac number, because 1143044554165 - 2²⁵ = 1143010999733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1875189 + ... + 2408821.

It is an arithmetic number, because the mean of its divisors is an integer number (171457404651).

Almost surely, 2^{1143044554165} is an apocalyptic number.

It is an amenable number.

1143044554165 is a deficient number, since it is larger than the sum of its proper divisors (228614683043).

1143044554165 is an equidigital number, since it uses as much as digits as its factorization.

1143044554165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962039.

The product of its (nonzero) digits is 576000, while the sum is 43.

Adding to 1143044554165 its reverse (5614554403411), we get a palindrome (6757598957576).

The spelling of 1143044554165 in words is "one trillion, one hundred forty-three billion, forty-four million, five hundred fifty-four thousand, one hundred sixty-five".