2859139 has 8 divisors (see below), whose sum is σ = 3114000. Its totient is φ = 2614752.

The previous prime is 2859137. The next prime is 2859163. The reversal of 2859139 is 9319582.

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

It is a cyclic number.

It is not a de Polignac number, because 2859139 - 2¹ = 2859137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2859098 and 2859107.

It is not an unprimeable number, because it can be changed into a prime (2859133) 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, 2044 + ... + 3145.

It is an arithmetic number, because the mean of its divisors is an integer number (389250).

2^2859139 is an apocalyptic number.

2859139 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2859139 is a deficient number, since it is larger than the sum of its proper divisors (254861).

2859139 is a wasteful number, since it uses less digits than its factorization.

2859139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5237.

The product of its digits is 19440, while the sum is 37.

The square root of 2859139 is about 1690.8988733807. The cubic root of 2859139 is about 141.9313792629.

The spelling of 2859139 in words is "two million, eight hundred fifty-nine thousand, one hundred thirty-nine".