212534503 has 4 divisors (see below), whose sum is σ = 212897160. Its totient is φ = 212171848.

The previous prime is 212534489. The next prime is 212534507. The reversal of 212534503 is 305435212.

212534503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 212534503 - 2¹⁷ = 212403431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212534507) 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, 180448 + ... + 181621.

It is an arithmetic number, because the mean of its divisors is an integer number (53224290).

Almost surely, 2^212534503 is an apocalyptic number.

212534503 is a deficient number, since it is larger than the sum of its proper divisors (362657).

212534503 is an equidigital number, since it uses as much as digits as its factorization.

212534503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362656.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 212534503 is about 14578.5631322157. The cubic root of 212534503 is about 596.7738912751.

Adding to 212534503 its reverse (305435212), we get a palindrome (517969715).

The spelling of 212534503 in words is "two hundred twelve million, five hundred thirty-four thousand, five hundred three".