211289214 has 16 divisors (see below), whose sum is σ = 422858880. Its totient is φ = 70383000.

The previous prime is 211289191. The next prime is 211289233. The reversal of 211289214 is 412982112.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1162 + ... + 20589.

It is an arithmetic number, because the mean of its divisors is an integer number (26428680).

Almost surely, 2^211289214 is an apocalyptic number.

211289214 is an abundant number, since it is smaller than the sum of its proper divisors (211569666).

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

211289214 is a wasteful number, since it uses less digits than its factorization.

211289214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23375.

The product of its digits is 2304, while the sum is 30.

The square root of 211289214 is about 14535.7907937614. The cubic root of 211289214 is about 595.6060618387.

The spelling of 211289214 in words is "two hundred eleven million, two hundred eighty-nine thousand, two hundred fourteen".