212653 has 8 divisors (see below), whose sum is σ = 257472. Its totient is φ = 171456.

The previous prime is 212651. The next prime is 212669. The reversal of 212653 is 356212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212653 - 2¹ = 212651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 775 + ... + 1012.

It is an arithmetic number, because the mean of its divisors is an integer number (32184).

2²¹²⁶⁵³ is an apocalyptic number.

It is an amenable number.

212653 is a deficient number, since it is larger than the sum of its proper divisors (44819).

212653 is a wasteful number, since it uses less digits than its factorization.

212653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1811.

The product of its digits is 360, while the sum is 19.

The square root of 212653 is about 461.1431448043. The cubic root of 212653 is about 59.6884779588.

Adding to 212653 its reverse (356212), we get a palindrome (568865).

The spelling of 212653 in words is "two hundred twelve thousand, six hundred fifty-three".