215480211 has 8 divisors (see below), whose sum is σ = 287505360. Its totient is φ = 143554272.

The previous prime is 215480207. The next prime is 215480227. The reversal of 215480211 is 112084512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 215480211 - 2² = 215480207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (215484211) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 19576 + ... + 28533.

It is an arithmetic number, because the mean of its divisors is an integer number (35938170).

Almost surely, 2^215480211 is an apocalyptic number.

215480211 is a deficient number, since it is larger than the sum of its proper divisors (72025149).

215480211 is a wasteful number, since it uses less digits than its factorization.

215480211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49605.

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 215480211 is about 14679.2442244143. The cubic root of 215480211 is about 599.5183273114.

The spelling of 215480211 in words is "two hundred fifteen million, four hundred eighty thousand, two hundred eleven".