1143316733 has 4 divisors (see below), whose sum is σ = 1231264188. Its totient is φ = 1055369280.

The previous prime is 1143316709. The next prime is 1143316771. The reversal of 1143316733 is 3376133411.

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

It can be written as a sum of positive squares in 2 ways, for example, as 504137209 + 639179524 = 22453^2 + 25282^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1143316733 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1143316733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143316703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43973708 + ... + 43973733.

It is an arithmetic number, because the mean of its divisors is an integer number (307816047).

Almost surely, 2^1143316733 is an apocalyptic number.

1143316733 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1143316733 is a deficient number, since it is larger than the sum of its proper divisors (87947455).

1143316733 is an equidigital number, since it uses as much as digits as its factorization.

1143316733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87947454.

The product of its digits is 13608, while the sum is 32.

The square root of 1143316733 is about 33812.9669357778. The cubic root of 1143316733 is about 1045.6560467700.

The spelling of 1143316733 in words is "one billion, one hundred forty-three million, three hundred sixteen thousand, seven hundred thirty-three".