1004159 has 4 divisors (see below), whose sum is σ = 1081416. Its totient is φ = 926904.

The previous prime is 1004141. The next prime is 1004161. The reversal of 1004159 is 9514001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1004159 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1004159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004119) 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, 38609 + ... + 38634.

It is an arithmetic number, because the mean of its divisors is an integer number (270354).

2^1004159 is an apocalyptic number.

1004159 is a deficient number, since it is larger than the sum of its proper divisors (77257).

1004159 is an equidigital number, since it uses as much as digits as its factorization.

1004159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77256.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 1004159 is about 1002.0773423244. The cubic root of 1004159 is about 100.1384415842.

The spelling of 1004159 in words is "one million, four thousand, one hundred fifty-nine".