214128081 has 12 divisors (see below), whose sum is σ = 325575120. Its totient is φ = 135238680.

The previous prime is 214128059. The next prime is 214128121. The reversal of 214128081 is 180821412.

214128081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 214128081 - 2⁶ = 214128017 is a prime.

It is a super-2 number, since 2×214128081² = 91701670145485122, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (214128001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 625935 + ... + 626276.

It is an arithmetic number, because the mean of its divisors is an integer number (27131260).

Almost surely, 2^214128081 is an apocalyptic number.

It is an amenable number.

214128081 is a deficient number, since it is larger than the sum of its proper divisors (111447039).

214128081 is a wasteful number, since it uses less digits than its factorization.

214128081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252236 (or 1252233 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 214128081 is about 14633.1159019533. The cubic root of 214128081 is about 598.2617104458.

Adding to 214128081 its reverse (180821412), we get a palindrome (394949493).

The spelling of 214128081 in words is "two hundred fourteen million, one hundred twenty-eight thousand, eighty-one".