2904143 has 4 divisors (see below), whose sum is σ = 3168168. Its totient is φ = 2640120.

The previous prime is 2904137. The next prime is 2904163. The reversal of 2904143 is 3414092.

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-2904143 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 (2904103) 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, 131996 + ... + 132017.

It is an arithmetic number, because the mean of its divisors is an integer number (792042).

2^2904143 is an apocalyptic number.

2904143 is a deficient number, since it is larger than the sum of its proper divisors (264025).

2904143 is a wasteful number, since it uses less digits than its factorization.

2904143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264024.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 2904143 is about 1704.1546291343. The cubic root of 2904143 is about 142.6721915592.

The spelling of 2904143 in words is "two million, nine hundred four thousand, one hundred forty-three".