2678159 has 4 divisors (see below), whose sum is σ = 2921640. Its totient is φ = 2434680.

The previous prime is 2678153. The next prime is 2678167. The reversal of 2678159 is 9518762.

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

It is a cyclic number.

It is not a de Polignac number, because 2678159 - 2⁸ = 2677903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2678153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121724 + ... + 121745.

It is an arithmetic number, because the mean of its divisors is an integer number (730410).

2^2678159 is an apocalyptic number.

2678159 is a deficient number, since it is larger than the sum of its proper divisors (243481).

2678159 is a wasteful number, since it uses less digits than its factorization.

2678159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243480.

The product of its digits is 30240, while the sum is 38.

The square root of 2678159 is about 1636.5081729096. The cubic root of 2678159 is about 138.8711778542.

The spelling of 2678159 in words is "two million, six hundred seventy-eight thousand, one hundred fifty-nine".