314155217 has 2 divisors, whose sum is σ = 314155218. Its totient is φ = 314155216.

The previous prime is 314155213. The next prime is 314155277. The reversal of 314155217 is 712551413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192626641 + 121528576 = 13879^2 + 11024^2 .

It is a cyclic number.

It is not a de Polignac number, because 314155217 - 2² = 314155213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 314155217.

It is not a weakly prime, because it can be changed into another prime (314155211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157077608 + 157077609.

It is an arithmetic number, because the mean of its divisors is an integer number (157077609).

Almost surely, 2^314155217 is an apocalyptic number.

It is an amenable number.

314155217 is a deficient number, since it is larger than the sum of its proper divisors (1).

314155217 is an equidigital number, since it uses as much as digits as its factorization.

314155217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4200, while the sum is 29.

The square root of 314155217 is about 17724.4243065889. The cubic root of 314155217 is about 679.8004150420.

The spelling of 314155217 in words is "three hundred fourteen million, one hundred fifty-five thousand, two hundred seventeen".