212941 has 4 divisors (see below), whose sum is σ = 215932. Its totient is φ = 209952.

The previous prime is 212923. The next prime is 212969. The reversal of 212941 is 149212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 184041 + 28900 = 429^2 + 170^2 .

It is a 4-Lehmer number, since φ(212941) divides (212941-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 212941 - 2⁵ = 212909 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212981) 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, 1386 + ... + 1531.

It is an arithmetic number, because the mean of its divisors is an integer number (53983).

2²¹²⁹⁴¹ is an apocalyptic number.

It is an amenable number.

212941 is a deficient number, since it is larger than the sum of its proper divisors (2991).

212941 is an equidigital number, since it uses as much as digits as its factorization.

212941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2990.

The product of its digits is 144, while the sum is 19.

The square root of 212941 is about 461.4553066116. The cubic root of 212941 is about 59.7154115503.

The spelling of 212941 in words is "two hundred twelve thousand, nine hundred forty-one".