2543066 has 8 divisors (see below), whose sum is σ = 3907764. Its totient is φ = 1240480.

The previous prime is 2543059. The next prime is 2543111. The reversal of 2543066 is 6603452.

It can be written as a sum of positive squares in 2 ways, for example, as 1600225 + 942841 = 1265^2 + 971^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 15425 + ... + 15588.

2^2543066 is an apocalyptic number.

2543066 is a deficient number, since it is larger than the sum of its proper divisors (1364698).

2543066 is a wasteful number, since it uses less digits than its factorization.

2543066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31056.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 2543066 is about 1594.6993447042. The cubic root of 2543066 is about 136.4957755628.

The spelling of 2543066 in words is "two million, five hundred forty-three thousand, sixty-six".