216195267 has 8 divisors (see below), whose sum is σ = 292209424. Its totient is φ = 142155648.

The previous prime is 216195263. The next prime is 216195289. The reversal of 216195267 is 762591612.

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

It is not a de Polignac number, because 216195267 - 2² = 216195263 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216195263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 493378 + ... + 493815.

It is an arithmetic number, because the mean of its divisors is an integer number (36526178).

Almost surely, 2^216195267 is an apocalyptic number.

216195267 is a deficient number, since it is larger than the sum of its proper divisors (76014157).

216195267 is an equidigital number, since it uses as much as digits as its factorization.

216195267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987269.

The product of its digits is 45360, while the sum is 39.

The square root of 216195267 is about 14703.5800742540. The cubic root of 216195267 is about 600.1807483224.

The spelling of 216195267 in words is "two hundred sixteen million, one hundred ninety-five thousand, two hundred sixty-seven".