214448681 has 4 divisors (see below), whose sum is σ = 214989252. Its totient is φ = 213908112.

The previous prime is 214448629. The next prime is 214448699. The reversal of 214448681 is 186844412.

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 161290000 + 53158681 = 12700^2 + 7291^2 .

It is a cyclic number.

It is not a de Polignac number, because 214448681 - 2⁶ = 214448617 is a prime.

It is a super-3 number, since 3×214448681³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214445681) 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, 269690 + ... + 270483.

It is an arithmetic number, because the mean of its divisors is an integer number (53747313).

Almost surely, 2^214448681 is an apocalyptic number.

It is an amenable number.

214448681 is a deficient number, since it is larger than the sum of its proper divisors (540571).

214448681 is an equidigital number, since it uses as much as digits as its factorization.

214448681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540570.

The product of its digits is 49152, while the sum is 38.

The square root of 214448681 is about 14644.0664093004. The cubic root of 214448681 is about 598.5601409591.

The spelling of 214448681 in words is "two hundred fourteen million, four hundred forty-eight thousand, six hundred eighty-one".