415144217 has 2 divisors, whose sum is σ = 415144218. Its totient is φ = 415144216.

The previous prime is 415144201. The next prime is 415144297. The reversal of 415144217 is 712441514.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 243953161 + 171191056 = 15619^2 + 13084^2 .

It is a cyclic number.

It is not a de Polignac number, because 415144217 - 2⁴ = 415144201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 415144217.

It is not a weakly prime, because it can be changed into another prime (415144297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 207572108 + 207572109.

It is an arithmetic number, because the mean of its divisors is an integer number (207572109).

Almost surely, 2^415144217 is an apocalyptic number.

It is an amenable number.

415144217 is a deficient number, since it is larger than the sum of its proper divisors (1).

415144217 is an equidigital number, since it uses as much as digits as its factorization.

415144217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4480, while the sum is 29.

The square root of 415144217 is about 20375.0881470486. The cubic root of 415144217 is about 745.9899857779.

The spelling of 415144217 in words is "four hundred fifteen million, one hundred forty-four thousand, two hundred seventeen".