1143384959 has 4 divisors (see below), whose sum is σ = 1143613440. Its totient is φ = 1143156480.

The previous prime is 1143384941. The next prime is 1143384973. The reversal of 1143384959 is 9594833411.

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

It is a cyclic number.

It is not a de Polignac number, because 1143384959 - 2⁸ = 1143384703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143384259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106562 + ... + 116799.

It is an arithmetic number, because the mean of its divisors is an integer number (285903360).

Almost surely, 2^1143384959 is an apocalyptic number.

1143384959 is a deficient number, since it is larger than the sum of its proper divisors (228481).

1143384959 is an equidigital number, since it uses as much as digits as its factorization.

1143384959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228480.

The product of its digits is 466560, while the sum is 47.

The square root of 1143384959 is about 33813.9757940411. The cubic root of 1143384959 is about 1045.6768457630.

The spelling of 1143384959 in words is "one billion, one hundred forty-three million, three hundred eighty-four thousand, nine hundred fifty-nine".