1143476859 has 8 divisors (see below), whose sum is σ = 1742440960. Its totient is φ = 653415336.

The previous prime is 1143476849. The next prime is 1143476879. The reversal of 1143476859 is 9586743411.

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

It is not a de Polignac number, because 1143476859 - 2⁵ = 1143476827 is a prime.

It is a super-3 number, since 3×1143476859³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143476849) 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, 27225619 + ... + 27225660.

It is an arithmetic number, because the mean of its divisors is an integer number (217805120).

Almost surely, 2^1143476859 is an apocalyptic number.

1143476859 is a deficient number, since it is larger than the sum of its proper divisors (598964101).

1143476859 is an equidigital number, since it uses as much as digits as its factorization.

1143476859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54451289.

The product of its digits is 725760, while the sum is 48.

The square root of 1143476859 is about 33815.3346723051. The cubic root of 1143476859 is about 1045.7048605703.

The spelling of 1143476859 in words is "one billion, one hundred forty-three million, four hundred seventy-six thousand, eight hundred fifty-nine".