2912143 has 4 divisors (see below), whose sum is σ = 3136168. Its totient is φ = 2688120.

The previous prime is 2912141. The next prime is 2912197. The reversal of 2912143 is 3412192.

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 2912143 - 2¹ = 2912141 is a prime.

It is the 1707-th Hogben number.

It is a Duffinian number.

2912143 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2912141) by changing a digit.

It is a nontrivial repunit in base 1706.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111993 + ... + 112018.

It is an arithmetic number, because the mean of its divisors is an integer number (784042).

2^2912143 is an apocalyptic number.

2912143 is a deficient number, since it is larger than the sum of its proper divisors (224025).

2912143 is a wasteful number, since it uses less digits than its factorization.

2912143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224024.

The product of its digits is 432, while the sum is 22.

The square root of 2912143 is about 1706.5002197480. The cubic root of 2912143 is about 142.8030771123.

The spelling of 2912143 in words is "two million, nine hundred twelve thousand, one hundred forty-three".