214553321 has 2 divisors, whose sum is σ = 214553322. Its totient is φ = 214553320.

The previous prime is 214553309. The next prime is 214553327. The reversal of 214553321 is 123355412.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211295296 + 3258025 = 14536^2 + 1805^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214553321 is a prime.

It is not a weakly prime, because it can be changed into another prime (214553327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107276660 + 107276661.

It is an arithmetic number, because the mean of its divisors is an integer number (107276661).

Almost surely, 2^214553321 is an apocalyptic number.

It is an amenable number.

214553321 is a deficient number, since it is larger than the sum of its proper divisors (1).

214553321 is an equidigital number, since it uses as much as digits as its factorization.

214553321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 26.

The square root of 214553321 is about 14647.6387516896. The cubic root of 214553321 is about 598.6574807178.

The spelling of 214553321 in words is "two hundred fourteen million, five hundred fifty-three thousand, three hundred twenty-one".