214389653 has 4 divisors (see below), whose sum is σ = 215004300. Its totient is φ = 213775008.

The previous prime is 214389641. The next prime is 214389661. The reversal of 214389653 is 356983412.

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

It can be written as a sum of positive squares in 2 ways, for example, as 66961489 + 147428164 = 8183^2 + 12142^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214389653 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 214389653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214389353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306800 + ... + 307497.

It is an arithmetic number, because the mean of its divisors is an integer number (53751075).

Almost surely, 2^214389653 is an apocalyptic number.

It is an amenable number.

214389653 is a deficient number, since it is larger than the sum of its proper divisors (614647).

214389653 is an equidigital number, since it uses as much as digits as its factorization.

214389653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614646.

The product of its digits is 155520, while the sum is 41.

The square root of 214389653 is about 14642.0508467906. The cubic root of 214389653 is about 598.5052170956.

The spelling of 214389653 in words is "two hundred fourteen million, three hundred eighty-nine thousand, six hundred fifty-three".