1143403055 has 4 divisors (see below), whose sum is σ = 1372083672. Its totient is φ = 914722440.

The previous prime is 1143403049. The next prime is 1143403069. The reversal of 1143403055 is 5503043411.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-1143403055 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 3 ways as a sum of consecutive naturals, for example, 114340301 + ... + 114340310.

It is an arithmetic number, because the mean of its divisors is an integer number (343020918).

Almost surely, 2^1143403055 is an apocalyptic number.

1143403055 is a deficient number, since it is larger than the sum of its proper divisors (228680617).

1143403055 is an equidigital number, since it uses as much as digits as its factorization.

1143403055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228680616.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1143403055 is about 33814.2433746491. The cubic root of 1143403055 is about 1045.6823622686.

Adding to 1143403055 its reverse (5503043411), we get a palindrome (6646446466).

The spelling of 1143403055 in words is "one billion, one hundred forty-three million, four hundred three thousand, fifty-five".