1143879 has 16 divisors (see below), whose sum is σ = 1762560. Its totient is φ = 652160.

The previous prime is 1143851. The next prime is 1143887. The reversal of 1143879 is 9783411.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1143879 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 459 + ... + 1580.

It is an arithmetic number, because the mean of its divisors is an integer number (110160).

2^1143879 is an apocalyptic number.

1143879 is a deficient number, since it is larger than the sum of its proper divisors (618681).

1143879 is a wasteful number, since it uses less digits than its factorization.

1143879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070.

The product of its digits is 6048, while the sum is 33.

The square root of 1143879 is about 1069.5227907810. The cubic root of 1143879 is about 104.5827431630.

It can be divided in two parts, 114 and 3879, that added together give a palindrome (3993).

The spelling of 1143879 in words is "one million, one hundred forty-three thousand, eight hundred seventy-nine".