2543229 has 12 divisors (see below), whose sum is σ = 3956316. Its totient is φ = 1564992.

The previous prime is 2543221. The next prime is 2543237. The reversal of 2543229 is 9223452.

It is an interprime number because it is at equal distance from previous prime (2543221) and next prime (2543237).

It can be written as a sum of positive squares in 2 ways, for example, as 248004 + 2295225 = 498^2 + 1515^2 .

It is not a de Polignac number, because 2543229 - 2³ = 2543221 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543221) 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, 10752 + ... + 10985.

It is an arithmetic number, because the mean of its divisors is an integer number (329693).

2^2543229 is an apocalyptic number.

It is an amenable number.

2543229 is a deficient number, since it is larger than the sum of its proper divisors (1413087).

2543229 is a wasteful number, since it uses less digits than its factorization.

2543229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21756 (or 21753 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 2543229 is about 1594.7504506975. The cubic root of 2543229 is about 136.4986917719.

It can be divided in two parts, 2543 and 229, that added together give a palindrome (2772).

The spelling of 2543229 in words is "two million, five hundred forty-three thousand, two hundred twenty-nine".