212703 has 4 divisors (see below), whose sum is σ = 283608. Its totient is φ = 141800.

The previous prime is 212701. The next prime is 212777. The reversal of 212703 is 307212.

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 212703 - 2¹ = 212701 is a prime.

It is a D-number.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212701) 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, 35448 + ... + 35453.

It is an arithmetic number, because the mean of its divisors is an integer number (70902).

2²¹²⁷⁰³ is an apocalyptic number.

212703 is a deficient number, since it is larger than the sum of its proper divisors (70905).

212703 is an equidigital number, since it uses as much as digits as its factorization.

212703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70904.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 212703 is about 461.1973547192. The cubic root of 212703 is about 59.6931556732.

Adding to 212703 its reverse (307212), we get a palindrome (519915).

The spelling of 212703 in words is "two hundred twelve thousand, seven hundred three", and thus it is an iban number.