1143159 has 8 divisors (see below), whose sum is σ = 1542912. Its totient is φ = 752760.

The previous prime is 1143143. The next prime is 1143161. The reversal of 1143159 is 9513411.

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

It is not a de Polignac number, because 1143159 - 2⁴ = 1143143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2047 + ... + 2544.

It is an arithmetic number, because the mean of its divisors is an integer number (192864).

2^1143159 is an apocalyptic number.

1143159 is a deficient number, since it is larger than the sum of its proper divisors (399753).

1143159 is an equidigital number, since it uses as much as digits as its factorization.

1143159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4677.

The product of its digits is 540, while the sum is 24.

The square root of 1143159 is about 1069.1861390796. The cubic root of 1143159 is about 104.5607958010.

The spelling of 1143159 in words is "one million, one hundred forty-three thousand, one hundred fifty-nine".