211745214 has 12 divisors (see below), whose sum is σ = 458781336. Its totient is φ = 70581732.

The previous prime is 211745167. The next prime is 211745231. The reversal of 211745214 is 412547112.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5881794 + ... + 5881829.

It is an arithmetic number, because the mean of its divisors is an integer number (38231778).

Almost surely, 2^211745214 is an apocalyptic number.

211745214 is an abundant number, since it is smaller than the sum of its proper divisors (247036122).

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

211745214 is a wasteful number, since it uses less digits than its factorization.

211745214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11763631 (or 11763628 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 211745214 is about 14551.4677610198. The cubic root of 211745214 is about 596.0342288496.

The spelling of 211745214 in words is "two hundred eleven million, seven hundred forty-five thousand, two hundred fourteen".