211738214 has 4 divisors (see below), whose sum is σ = 317607324. Its totient is φ = 105869106.

The previous prime is 211738211. The next prime is 211738231. The reversal of 211738214 is 412837112.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211738211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52934552 + ... + 52934555.

It is an arithmetic number, because the mean of its divisors is an integer number (79401831).

Almost surely, 2^211738214 is an apocalyptic number.

211738214 is a deficient number, since it is larger than the sum of its proper divisors (105869110).

211738214 is a wasteful number, since it uses less digits than its factorization.

211738214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105869109.

The product of its digits is 2688, while the sum is 29.

The square root of 211738214 is about 14551.2272334673. The cubic root of 211738214 is about 596.0276607585.

The spelling of 211738214 in words is "two hundred eleven million, seven hundred thirty-eight thousand, two hundred fourteen".