210045243 has 16 divisors (see below), whose sum is σ = 289898496. Its totient is φ = 135136320.

The previous prime is 210045233. The next prime is 210045281. The reversal of 210045243 is 342540012.

It is not a de Polignac number, because 210045243 - 2⁶ = 210045179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210045203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32671 + ... + 38567.

It is an arithmetic number, because the mean of its divisors is an integer number (18118656).

Almost surely, 2^210045243 is an apocalyptic number.

210045243 is a deficient number, since it is larger than the sum of its proper divisors (79853253).

210045243 is a wasteful number, since it uses less digits than its factorization.

210045243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6314.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 210045243 is about 14492.9376939253. The cubic root of 210045243 is about 594.4348780622.

Adding to 210045243 its reverse (342540012), we get a palindrome (552585255).

The spelling of 210045243 in words is "two hundred ten million, forty-five thousand, two hundred forty-three".