1142943 has 8 divisors (see below), whose sum is σ = 1529856. Its totient is φ = 759000.

The previous prime is 1142941. The next prime is 1142959. The reversal of 1142943 is 3492411.

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

It is not a de Polignac number, because 1142943 - 2¹ = 1142941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142941) by changing a digit.

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, 418 + ... + 1568.

It is an arithmetic number, because the mean of its divisors is an integer number (191232).

2^1142943 is an apocalyptic number.

1142943 is a deficient number, since it is larger than the sum of its proper divisors (386913).

1142943 is a wasteful number, since it uses less digits than its factorization.

1142943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485.

The product of its digits is 864, while the sum is 24.

The square root of 1142943 is about 1069.0851228971. The cubic root of 1142943 is about 104.5542097955.

The spelling of 1142943 in words is "one million, one hundred forty-two thousand, nine hundred forty-three".