1143359 has 4 divisors (see below), whose sum is σ = 1306704. Its totient is φ = 980016.

The previous prime is 1143347. The next prime is 1143371. The reversal of 1143359 is 9533411.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1143347) and next prime (1143371).

It is a cyclic number.

It is not a de Polignac number, because 1143359 - 2¹² = 1139263 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 3 ways as a sum of consecutive naturals, for example, 81662 + ... + 81675.

It is an arithmetic number, because the mean of its divisors is an integer number (326676).

2^1143359 is an apocalyptic number.

1143359 is a deficient number, since it is larger than the sum of its proper divisors (163345).

1143359 is an equidigital number, since it uses as much as digits as its factorization.

1143359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163344.

The product of its digits is 1620, while the sum is 26.

The square root of 1143359 is about 1069.2796640730. The cubic root of 1143359 is about 104.5668932146.

The spelling of 1143359 in words is "one million, one hundred forty-three thousand, three hundred fifty-nine".