216201135 has 8 divisors (see below), whose sum is σ = 345921840. Its totient is φ = 115307264.

The previous prime is 216201131. The next prime is 216201157. The reversal of 216201135 is 531102612.

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 216201135 - 2² = 216201131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216201131) 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, 7206690 + ... + 7206719.

It is an arithmetic number, because the mean of its divisors is an integer number (43240230).

Almost surely, 2^216201135 is an apocalyptic number.

216201135 is a deficient number, since it is larger than the sum of its proper divisors (129720705).

216201135 is a wasteful number, since it uses less digits than its factorization.

216201135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14413417.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 216201135 is about 14703.7796161395. The cubic root of 216201135 is about 600.1861783345.

Adding to 216201135 its reverse (531102612), we get a palindrome (747303747).

The spelling of 216201135 in words is "two hundred sixteen million, two hundred one thousand, one hundred thirty-five".