210235243 has 4 divisors (see below), whose sum is σ = 222602040. Its totient is φ = 197868448.

The previous prime is 210235217. The next prime is 210235261. The reversal of 210235243 is 342532012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210235243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210235043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6183373 + ... + 6183406.

It is an arithmetic number, because the mean of its divisors is an integer number (55650510).

Almost surely, 2^210235243 is an apocalyptic number.

210235243 is a deficient number, since it is larger than the sum of its proper divisors (12366797).

210235243 is a wasteful number, since it uses less digits than its factorization.

210235243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12366796.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 210235243 is about 14499.4911290017. The cubic root of 210235243 is about 594.6140594417.

Adding to 210235243 its reverse (342532012), we get a palindrome (552767255).

The spelling of 210235243 in words is "two hundred ten million, two hundred thirty-five thousand, two hundred forty-three".