216150005 has 4 divisors (see below), whose sum is σ = 259380012. Its totient is φ = 172920000.

The previous prime is 216150001. The next prime is 216150029. The reversal of 216150005 is 500051612.

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

It can be written as a sum of positive squares in 2 ways, for example, as 49688401 + 166461604 = 7049^2 + 12902^2 .

It is not a de Polignac number, because 216150005 - 2² = 216150001 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 (216150001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21614996 + ... + 21615005.

It is an arithmetic number, because the mean of its divisors is an integer number (64845003).

Almost surely, 2^216150005 is an apocalyptic number.

It is an amenable number.

216150005 is a deficient number, since it is larger than the sum of its proper divisors (43230007).

216150005 is an equidigital number, since it uses as much as digits as its factorization.

216150005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43230006.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 216150005 is about 14702.0408447263. The cubic root of 216150005 is about 600.1388613786.

The spelling of 216150005 in words is "two hundred sixteen million, one hundred fifty thousand, five".