2919139 has 4 divisors (see below), whose sum is σ = 2940280. Its totient is φ = 2898000.

The previous prime is 2919127. The next prime is 2919149. The reversal of 2919139 is 9319192.

2919139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2919139 - 2⁵ = 2919107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2919109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10362 + ... + 10639.

It is an arithmetic number, because the mean of its divisors is an integer number (735070).

2^2919139 is an apocalyptic number.

2919139 is a deficient number, since it is larger than the sum of its proper divisors (21141).

2919139 is a wasteful number, since it uses less digits than its factorization.

2919139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21140.

The product of its digits is 4374, while the sum is 34.

The square root of 2919139 is about 1708.5487994201. The cubic root of 2919139 is about 142.9173402018.

The spelling of 2919139 in words is "two million, nine hundred nineteen thousand, one hundred thirty-nine".