214525321 has 2 divisors, whose sum is σ = 214525322. Its totient is φ = 214525320.

The previous prime is 214525309. The next prime is 214525327. The reversal of 214525321 is 123525412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209525625 + 4999696 = 14475^2 + 2236^2 .

It is a cyclic number.

It is not a de Polignac number, because 214525321 - 2²⁷ = 80307593 is a prime.

It is a super-2 number, since 2×214525321² = 92042226700306082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (214525327) 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, 107262660 + 107262661.

It is an arithmetic number, because the mean of its divisors is an integer number (107262661).

Almost surely, 2^214525321 is an apocalyptic number.

It is an amenable number.

214525321 is a deficient number, since it is larger than the sum of its proper divisors (1).

214525321 is an equidigital number, since it uses as much as digits as its factorization.

214525321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2400, while the sum is 25.

The square root of 214525321 is about 14646.6829350539. The cubic root of 214525321 is about 598.6314372482.

Subtracting from 214525321 its reverse (123525412), we obtain a palindrome (90999909).

The spelling of 214525321 in words is "two hundred fourteen million, five hundred twenty-five thousand, three hundred twenty-one".