1143838318 has 16 divisors (see below), whose sum is σ = 1961299584. Its totient is φ = 490107960.

The previous prime is 1143838273. The next prime is 1143838331. The reversal of 1143838318 is 8138383411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121621 + ... + 130687.

It is an arithmetic number, because the mean of its divisors is an integer number (122581224).

Almost surely, 2^1143838318 is an apocalyptic number.

1143838318 is a deficient number, since it is larger than the sum of its proper divisors (817461266).

1143838318 is an equidigital number, since it uses as much as digits as its factorization.

1143838318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18087.

The product of its digits is 55296, while the sum is 40.

The square root of 1143838318 is about 33820.6788518504. The cubic root of 1143838318 is about 1045.8150332161.

The spelling of 1143838318 in words is "one billion, one hundred forty-three million, eight hundred thirty-eight thousand, three hundred eighteen".