314133221 has 2 divisors, whose sum is σ = 314133222. Its totient is φ = 314133220.

The previous prime is 314133161. The next prime is 314133223. The reversal of 314133221 is 122331413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201242596 + 112890625 = 14186^2 + 10625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-314133221 is a prime.

Together with 314133223, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 314133193 and 314133202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (314133223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157066610 + 157066611.

It is an arithmetic number, because the mean of its divisors is an integer number (157066611).

Almost surely, 2^314133221 is an apocalyptic number.

It is an amenable number.

314133221 is a deficient number, since it is larger than the sum of its proper divisors (1).

314133221 is an equidigital number, since it uses as much as digits as its factorization.

314133221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 20.

The square root of 314133221 is about 17723.8037960253. The cubic root of 314133221 is about 679.7845489583.

Adding to 314133221 its reverse (122331413), we get a palindrome (436464634).

The spelling of 314133221 in words is "three hundred fourteen million, one hundred thirty-three thousand, two hundred twenty-one".