211914 has 24 divisors (see below), whose sum is σ = 469092. Its totient is φ = 69120.

The previous prime is 211891. The next prime is 211927. The reversal of 211914 is 419112.

It can be written as a sum of positive squares in 2 ways, for example, as 173889 + 38025 = 417^2 + 195^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1002 + ... + 1194.

2²¹¹⁹¹⁴ is an apocalyptic number.

211914 is an abundant number, since it is smaller than the sum of its proper divisors (257178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211914 is a wasteful number, since it uses less digits than its factorization.

211914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262 (or 259 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

The square root of 211914 is about 460.3411778236. The cubic root of 211914 is about 59.6192556733.

The spelling of 211914 in words is "two hundred eleven thousand, nine hundred fourteen".