210244243 has 12 divisors (see below), whose sum is σ = 234838008. Its totient is φ = 186668160.

The previous prime is 210244217. The next prime is 210244261. The reversal of 210244243 is 342442012.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-210244243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210244273) 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, 15171 + ... + 25507.

It is an arithmetic number, because the mean of its divisors is an integer number (19569834).

Almost surely, 2^210244243 is an apocalyptic number.

210244243 is a deficient number, since it is larger than the sum of its proper divisors (24593765).

210244243 is a wasteful number, since it uses less digits than its factorization.

210244243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10434 (or 10391 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 210244243 is about 14499.8014813997. The cubic root of 210244243 is about 594.6225443023.

Adding to 210244243 its reverse (342442012), we get a palindrome (552686255).

The spelling of 210244243 in words is "two hundred ten million, two hundred forty-four thousand, two hundred forty-three".