314432281 has 2 divisors, whose sum is σ = 314432282. Its totient is φ = 314432280.

The previous prime is 314432269. The next prime is 314432309. The reversal of 314432281 is 182234413.

It is an a-pointer prime, because the next prime (314432309) can be obtained adding 314432281 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 300675600 + 13756681 = 17340^2 + 3709^2 .

It is a cyclic number.

It is not a de Polignac number, because 314432281 - 2²⁷ = 180214553 is a prime.

It is a super-2 number, since 2×314432281² = 197735318669725922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (314432081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157216140 + 157216141.

It is an arithmetic number, because the mean of its divisors is an integer number (157216141).

Almost surely, 2^314432281 is an apocalyptic number.

It is an amenable number.

314432281 is a deficient number, since it is larger than the sum of its proper divisors (1).

314432281 is an equidigital number, since it uses as much as digits as its factorization.

314432281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 28.

The square root of 314432281 is about 17732.2384655745. The cubic root of 314432281 is about 680.0002025663. Note that the first 3 decimals are identical.

Adding to 314432281 its reverse (182234413), we get a palindrome (496666694).

The spelling of 314432281 in words is "three hundred fourteen million, four hundred thirty-two thousand, two hundred eighty-one".