415220215 has 4 divisors (see below), whose sum is σ = 498264264. Its totient is φ = 332176168.

The previous prime is 415220207. The next prime is 415220227. The reversal of 415220215 is 512022514.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 415220215 - 2³ = 415220207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41522017 + ... + 41522026.

It is an arithmetic number, because the mean of its divisors is an integer number (124566066).

Almost surely, 2^415220215 is an apocalyptic number.

415220215 is a deficient number, since it is larger than the sum of its proper divisors (83044049).

415220215 is an equidigital number, since it uses as much as digits as its factorization.

415220215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83044048.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 415220215 is about 20376.9530352308. The cubic root of 415220215 is about 746.0355043274.

Adding to 415220215 its reverse (512022514), we get a palindrome (927242729).

The spelling of 415220215 in words is "four hundred fifteen million, two hundred twenty thousand, two hundred fifteen".