212853 has 4 divisors (see below), whose sum is σ = 283808. Its totient is φ = 141900.

The previous prime is 212851. The next prime is 212867. The reversal of 212853 is 358212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 212853 - 2¹ = 212851 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35473 + ... + 35478.

It is an arithmetic number, because the mean of its divisors is an integer number (70952).

2²¹²⁸⁵³ is an apocalyptic number.

It is an amenable number.

212853 is a deficient number, since it is larger than the sum of its proper divisors (70955).

212853 is an equidigital number, since it uses as much as digits as its factorization.

212853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70954.

The product of its digits is 480, while the sum is 21.

The square root of 212853 is about 461.3599462459. The cubic root of 212853 is about 59.7071844197.

The spelling of 212853 in words is "two hundred twelve thousand, eight hundred fifty-three".