1143681314 has 8 divisors (see below), whose sum is σ = 1743645468. Its totient is φ = 562466160.

The previous prime is 1143681293. The next prime is 1143681337. The reversal of 1143681314 is 4131863411.

It can be written as a sum of positive squares in 2 ways, for example, as 1133332225 + 10349089 = 33665^2 + 3217^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4687097 + ... + 4687340.

Almost surely, 2^1143681314 is an apocalyptic number.

1143681314 is a deficient number, since it is larger than the sum of its proper divisors (599964154).

1143681314 is an equidigital number, since it uses as much as digits as its factorization.

1143681314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9374500.

The product of its digits is 6912, while the sum is 32.

The square root of 1143681314 is about 33818.3576478811. The cubic root of 1143681314 is about 1045.7671812735.

The spelling of 1143681314 in words is "one billion, one hundred forty-three million, six hundred eighty-one thousand, three hundred fourteen".