214305121 has 2 divisors, whose sum is σ = 214305122. Its totient is φ = 214305120.

The previous prime is 214305109. The next prime is 214305131. The reversal of 214305121 is 121503412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206324496 + 7980625 = 14364^2 + 2825^2 .

It is a cyclic number.

It is not a de Polignac number, because 214305121 - 2¹¹ = 214303073 is a prime.

It is not a weakly prime, because it can be changed into another prime (214305131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107152560 + 107152561.

It is an arithmetic number, because the mean of its divisors is an integer number (107152561).

Almost surely, 2^214305121 is an apocalyptic number.

It is an amenable number.

214305121 is a deficient number, since it is larger than the sum of its proper divisors (1).

214305121 is an equidigital number, since it uses as much as digits as its factorization.

214305121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 214305121 is about 14639.1639447067. The cubic root of 214305121 is about 598.4265449314.

Adding to 214305121 its reverse (121503412), we get a palindrome (335808533).

The spelling of 214305121 in words is "two hundred fourteen million, three hundred five thousand, one hundred twenty-one".