210010243 has 4 divisors (see below), whose sum is σ = 210153528. Its totient is φ = 209866960.

The previous prime is 210010219. The next prime is 210010247. The reversal of 210010243 is 342010012.

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

It is a cyclic number.

It is not a de Polignac number, because 210010243 - 2¹⁷ = 209879171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210010247) 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, 69421 + ... + 72382.

It is an arithmetic number, because the mean of its divisors is an integer number (52538382).

Almost surely, 2^210010243 is an apocalyptic number.

210010243 is a deficient number, since it is larger than the sum of its proper divisors (143285).

210010243 is a wasteful number, since it uses less digits than its factorization.

210010243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143284.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 210010243 is about 14491.7301589562. The cubic root of 210010243 is about 594.4018591815.

Adding to 210010243 its reverse (342010012), we get a palindrome (552020255).

The spelling of 210010243 in words is "two hundred ten million, ten thousand, two hundred forty-three".