2646143 has 4 divisors (see below), whose sum is σ = 2665320. Its totient is φ = 2626968.

The previous prime is 2646113. The next prime is 2646167. The reversal of 2646143 is 3416462.

2646143 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 2646143 - 2⁶ = 2646079 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 (2646113) 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, 9380 + ... + 9657.

It is an arithmetic number, because the mean of its divisors is an integer number (666330).

2^2646143 is an apocalyptic number.

2646143 is a deficient number, since it is larger than the sum of its proper divisors (19177).

2646143 is a wasteful number, since it uses less digits than its factorization.

2646143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19176.

The product of its digits is 3456, while the sum is 26.

The square root of 2646143 is about 1626.6969601004. The cubic root of 2646143 is about 138.3155803737.

The spelling of 2646143 in words is "two million, six hundred forty-six thousand, one hundred forty-three".