514143221 has 2 divisors, whose sum is σ = 514143222. Its totient is φ = 514143220.

The previous prime is 514143209. The next prime is 514143241. The reversal of 514143221 is 122341415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 506880196 + 7263025 = 22514^2 + 2695^2 .

It is a cyclic number.

It is not a de Polignac number, because 514143221 - 2¹⁸ = 513881077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (514143241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257071610 + 257071611.

It is an arithmetic number, because the mean of its divisors is an integer number (257071611).

Almost surely, 2^514143221 is an apocalyptic number.

It is an amenable number.

514143221 is a deficient number, since it is larger than the sum of its proper divisors (1).

514143221 is an equidigital number, since it uses as much as digits as its factorization.

514143221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 23.

The square root of 514143221 is about 22674.7264812610. The cubic root of 514143221 is about 801.1147070015.

Adding to 514143221 its reverse (122341415), we get a palindrome (636484636).

The spelling of 514143221 in words is "five hundred fourteen million, one hundred forty-three thousand, two hundred twenty-one".