2943139 has 4 divisors (see below), whose sum is σ = 2952856. Its totient is φ = 2933424.

The previous prime is 2943137. The next prime is 2943167. The reversal of 2943139 is 9313492.

2943139 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 2943139 - 2¹ = 2943137 is a prime.

It is a Duffinian number.

2943139 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2943139.

It is not an unprimeable number, because it can be changed into a prime (2943133) 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, 4389 + ... + 5014.

It is an arithmetic number, because the mean of its divisors is an integer number (738214).

2^2943139 is an apocalyptic number.

2943139 is a deficient number, since it is larger than the sum of its proper divisors (9717).

2943139 is an equidigital number, since it uses as much as digits as its factorization.

2943139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9716.

The product of its digits is 5832, while the sum is 31.

The square root of 2943139 is about 1715.5579267399. The cubic root of 2943139 is about 143.3079415390.

The spelling of 2943139 in words is "two million, nine hundred forty-three thousand, one hundred thirty-nine".