214651321 has 2 divisors, whose sum is σ = 214651322. Its totient is φ = 214651320.

The previous prime is 214651291. The next prime is 214651351. The reversal of 214651321 is 123156412.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (214651291) and next prime (214651351).

It can be written as a sum of positive squares in only one way, i.e., 209525625 + 5125696 = 14475^2 + 2264^2 .

It is a cyclic number.

It is not a de Polignac number, because 214651321 - 2⁵ = 214651289 is a prime.

It is not a weakly prime, because it can be changed into another prime (214651351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107325660 + 107325661.

It is an arithmetic number, because the mean of its divisors is an integer number (107325661).

Almost surely, 2^214651321 is an apocalyptic number.

It is an amenable number.

214651321 is a deficient number, since it is larger than the sum of its proper divisors (1).

214651321 is an equidigital number, since it uses as much as digits as its factorization.

214651321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 25.

The square root of 214651321 is about 14650.9836188564. The cubic root of 214651321 is about 598.7486150220.

The spelling of 214651321 in words is "two hundred fourteen million, six hundred fifty-one thousand, three hundred twenty-one".