214521233 has 2 divisors, whose sum is σ = 214521234. Its totient is φ = 214521232.

The previous prime is 214521221. The next prime is 214521287. The reversal of 214521233 is 332125412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209467729 + 5053504 = 14473^2 + 2248^2 .

It is a cyclic number.

It is not a de Polignac number, because 214521233 - 2⁶ = 214521169 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 214521199 and 214521208.

It is not a weakly prime, because it can be changed into another prime (214521133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107260616 + 107260617.

It is an arithmetic number, because the mean of its divisors is an integer number (107260617).

Almost surely, 2^214521233 is an apocalyptic number.

It is an amenable number.

214521233 is a deficient number, since it is larger than the sum of its proper divisors (1).

214521233 is an equidigital number, since it uses as much as digits as its factorization.

214521233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 23.

The square root of 214521233 is about 14646.5433806069. The cubic root of 214521233 is about 598.6276347121.

Adding to 214521233 its reverse (332125412), we get a palindrome (546646645).

It can be divided in two parts, 21 and 4521233, that added together give a palindrome (4521254).

The spelling of 214521233 in words is "two hundred fourteen million, five hundred twenty-one thousand, two hundred thirty-three".