1143143205 has 16 divisors (see below), whose sum is σ = 1830479040. Its totient is φ = 609193088.

The previous prime is 1143143203. The next prime is 1143143333. The reversal of 1143143205 is 5023413411.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1143143205 - 2¹ = 1143143203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143143203) 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, 10227 + ... + 48896.

It is an arithmetic number, because the mean of its divisors is an integer number (114404940).

Almost surely, 2^1143143205 is an apocalyptic number.

1143143205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1143143205 is a deficient number, since it is larger than the sum of its proper divisors (687335835).

1143143205 is a wasteful number, since it uses less digits than its factorization.

1143143205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60420.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1143143205 is about 33810.4008405698. The cubic root of 1143143205 is about 1045.6031422749.

Adding to 1143143205 its reverse (5023413411), we get a palindrome (6166556616).

The spelling of 1143143205 in words is "one billion, one hundred forty-three million, one hundred forty-three thousand, two hundred five".