2236143 has 16 divisors (see below), whose sum is σ = 3670016. Its totient is φ = 1179360.

The previous prime is 2236139. The next prime is 2236153. The reversal of 2236143 is 3416322.

It is a happy number.

It is not a de Polignac number, because 2236143 - 2² = 2236139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a d-powerful number, because it can be written as 2¹⁷ + 2¹⁹ + 3⁶ + 6² + 1 + 4¹⁰ + 3¹² .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2236133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3823 + ... + 4368.

It is an arithmetic number, because the mean of its divisors is an integer number (229376).

2^2236143 is an apocalyptic number.

2236143 is a deficient number, since it is larger than the sum of its proper divisors (1433873).

2236143 is a wasteful number, since it uses less digits than its factorization.

2236143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8214.

The product of its digits is 864, while the sum is 21.

The square root of 2236143 is about 1495.3738662956. The cubic root of 2236143 is about 130.7675110323.

The spelling of 2236143 in words is "two million, two hundred thirty-six thousand, one hundred forty-three".