1143994 has 8 divisors (see below), whose sum is σ = 1744308. Its totient is φ = 562560.

The previous prime is 1143977. The next prime is 1144001. The reversal of 1143994 is 4993411.

It can be written as a sum of positive squares in 2 ways, for example, as 855625 + 288369 = 925^2 + 537^2 .

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

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, 4567 + ... + 4810.

2^1143994 is an apocalyptic number.

1143994 is a deficient number, since it is larger than the sum of its proper divisors (600314).

1143994 is an equidigital number, since it uses as much as digits as its factorization.

1143994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9440.

The product of its digits is 3888, while the sum is 31.

The square root of 1143994 is about 1069.5765517250. The cubic root of 1143994 is about 104.5862477914.

The spelling of 1143994 in words is "one million, one hundred forty-three thousand, nine hundred ninety-four".