445214317 has 2 divisors, whose sum is σ = 445214318. Its totient is φ = 445214316.

The previous prime is 445214311. The next prime is 445214321. The reversal of 445214317 is 713412544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 438106761 + 7107556 = 20931^2 + 2666^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445214317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445214311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222607158 + 222607159.

It is an arithmetic number, because the mean of its divisors is an integer number (222607159).

Almost surely, 2^445214317 is an apocalyptic number.

It is an amenable number.

445214317 is a deficient number, since it is larger than the sum of its proper divisors (1).

445214317 is an equidigital number, since it uses as much as digits as its factorization.

445214317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 31.

The square root of 445214317 is about 21100.1022983302. The cubic root of 445214317 is about 763.5832162244.

It can be divided in two parts, 4452 and 14317, that added together give a square (18769 = 137²).

The spelling of 445214317 in words is "four hundred forty-five million, two hundred fourteen thousand, three hundred seventeen".