212659 has 4 divisors (see below), whose sum is σ = 214720. Its totient is φ = 210600.

The previous prime is 212651. The next prime is 212669. The reversal of 212659 is 956212.

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 212659 - 2³ = 212651 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 867 + ... + 1084.

It is an arithmetic number, because the mean of its divisors is an integer number (53680).

2²¹²⁶⁵⁹ is an apocalyptic number.

212659 is a deficient number, since it is larger than the sum of its proper divisors (2061).

212659 is a wasteful number, since it uses less digits than its factorization.

212659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2060.

The product of its digits is 1080, while the sum is 25.

The square root of 212659 is about 461.1496503306. The cubic root of 212659 is about 59.6890393233.

The spelling of 212659 in words is "two hundred twelve thousand, six hundred fifty-nine".