314523221 has 2 divisors, whose sum is σ = 314523222. Its totient is φ = 314523220.

The previous prime is 314523217. The next prime is 314523233. The reversal of 314523221 is 122325413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 166048996 + 148474225 = 12886^2 + 12185^2 .

It is a cyclic number.

It is not a de Polignac number, because 314523221 - 2² = 314523217 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (314523721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157261610 + 157261611.

It is an arithmetic number, because the mean of its divisors is an integer number (157261611).

Almost surely, 2^314523221 is an apocalyptic number.

It is an amenable number.

314523221 is a deficient number, since it is larger than the sum of its proper divisors (1).

314523221 is an equidigital number, since it uses as much as digits as its factorization.

314523221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 23.

The square root of 314523221 is about 17734.8025362562. The cubic root of 314523221 is about 680.0657527249.

Adding to 314523221 its reverse (122325413), we get a palindrome (436848634).

The spelling of 314523221 in words is "three hundred fourteen million, five hundred twenty-three thousand, two hundred twenty-one".