214613021 has 16 divisors (see below), whose sum is σ = 254275200. Its totient is φ = 177229248.

The previous prime is 214613011. The next prime is 214613027. The reversal of 214613021 is 120316412.

It is not a de Polignac number, because 214613021 - 2²² = 210418717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 214612984 and 214613002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214613027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131750 + ... + 133368.

It is an arithmetic number, because the mean of its divisors is an integer number (15892200).

Almost surely, 2^214613021 is an apocalyptic number.

It is an amenable number.

214613021 is a deficient number, since it is larger than the sum of its proper divisors (39662179).

214613021 is a wasteful number, since it uses less digits than its factorization.

214613021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2308.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 214613021 is about 14649.6764810695. The cubic root of 214613021 is about 598.7130015507.

Adding to 214613021 its reverse (120316412), we get a palindrome (334929433).

The spelling of 214613021 in words is "two hundred fourteen million, six hundred thirteen thousand, twenty-one".