214240189 has 8 divisors (see below), whose sum is σ = 216182520. Its totient is φ = 212303616.

The previous prime is 214240153. The next prime is 214240217. The reversal of 214240189 is 981042412.

It can be written as a sum of positive squares in 4 ways, for example, as 98505625 + 115734564 = 9925^2 + 10758^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 214240189 - 2²⁷ = 80022461 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 214240189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214243189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109867 + ... + 111799.

It is an arithmetic number, because the mean of its divisors is an integer number (27022815).

Almost surely, 2^214240189 is an apocalyptic number.

It is an amenable number.

214240189 is a deficient number, since it is larger than the sum of its proper divisors (1942331).

214240189 is a wasteful number, since it uses less digits than its factorization.

214240189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2879.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 214240189 is about 14636.9460270919. The cubic root of 214240189 is about 598.3661000273.

The spelling of 214240189 in words is "two hundred fourteen million, two hundred forty thousand, one hundred eighty-nine".