212249 has 4 divisors (see below), whose sum is σ = 223440. Its totient is φ = 201060.

The previous prime is 212243. The next prime is 212281. The reversal of 212249 is 942212.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212249.

It is not an unprimeable number, because it can be changed into a prime (212243) 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, 5567 + ... + 5604.

It is an arithmetic number, because the mean of its divisors is an integer number (55860).

2²¹²²⁴⁹ is an apocalyptic number.

It is an amenable number.

212249 is a deficient number, since it is larger than the sum of its proper divisors (11191).

212249 is a wasteful number, since it uses less digits than its factorization.

212249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11190.

The product of its digits is 288, while the sum is 20.

The square root of 212249 is about 460.7048946994. The cubic root of 212249 is about 59.6506551019.

The spelling of 212249 in words is "two hundred twelve thousand, two hundred forty-nine".