1143966 has 16 divisors (see below), whose sum is σ = 2350224. Its totient is φ = 370944.

The previous prime is 1143959. The next prime is 1143977. The reversal of 1143966 is 6693411.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 2355 + ... + 2798.

It is an arithmetic number, because the mean of its divisors is an integer number (146889).

2^1143966 is an apocalyptic number.

1143966 is an abundant number, since it is smaller than the sum of its proper divisors (1206258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1143966 is a wasteful number, since it uses less digits than its factorization.

1143966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5195.

The product of its digits is 3888, while the sum is 30.

The square root of 1143966 is about 1069.5634623527. The cubic root of 1143966 is about 104.5853945122.

The spelling of 1143966 in words is "one million, one hundred forty-three thousand, nine hundred sixty-six".