2143250 has 16 divisors (see below), whose sum is σ = 4012632. Its totient is φ = 857200.

The previous prime is 2143243. The next prime is 2143259. The reversal of 2143250 is 523412.

It can be written as a sum of positive squares in 4 ways, for example, as 461041 + 1682209 = 679^2 + 1297^2 .

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2143259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4037 + ... + 4536.

2^2143250 is an apocalyptic number.

2143250 is a deficient number, since it is larger than the sum of its proper divisors (1869382).

2143250 is an equidigital number, since it uses as much as digits as its factorization.

2143250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8590 (or 8580 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2143250 is about 1463.9842895332. The cubic root of 2143250 is about 128.9310770974.

Adding to 2143250 its reverse (523412), we get a palindrome (2666662).

The spelling of 2143250 in words is "two million, one hundred forty-three thousand, two hundred fifty".