215007871 has 8 divisors (see below), whose sum is σ = 232561280. Its totient is φ = 197599392.

The previous prime is 215007829. The next prime is 215007883. The reversal of 215007871 is 178700512.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 215007871 - 2¹³ = 214999679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215007671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33135 + ... + 39088.

It is an arithmetic number, because the mean of its divisors is an integer number (29070160).

Almost surely, 2^215007871 is an apocalyptic number.

215007871 is a deficient number, since it is larger than the sum of its proper divisors (17553409).

215007871 is a wasteful number, since it uses less digits than its factorization.

215007871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72465.

The product of its (nonzero) digits is 3920, while the sum is 31.

The square root of 215007871 is about 14663.1466950310. The cubic root of 215007871 is about 599.0799519441.

The spelling of 215007871 in words is "two hundred fifteen million, seven thousand, eight hundred seventy-one".