2142873 has 12 divisors (see below), whose sum is σ = 3107988. Its totient is φ = 1422720.

The previous prime is 2142857. The next prime is 2142883. The reversal of 2142873 is 3782412.

It can be written as a sum of positive squares in 2 ways, for example, as 1272384 + 870489 = 1128^2 + 933^2 .

It is not a de Polignac number, because 2142873 - 2⁴ = 2142857 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 2¹⁰ + 1 + 4⁵ + 2²⁰ + 8⁶ + 7⁷ + 3⁸ .

2142873 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3853 + ... + 4373.

It is an arithmetic number, because the mean of its divisors is an integer number (258999).

2^2142873 is an apocalyptic number.

It is an amenable number.

2142873 is a deficient number, since it is larger than the sum of its proper divisors (965115).

2142873 is a wasteful number, since it uses less digits than its factorization.

2142873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984 (or 981 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 2142873 is about 1463.8555256582. The cubic root of 2142873 is about 128.9235169487.

The spelling of 2142873 in words is "two million, one hundred forty-two thousand, eight hundred seventy-three".