216025135 has 8 divisors (see below), whose sum is σ = 259384176. Its totient is φ = 172717440.

The previous prime is 216025127. The next prime is 216025181. The reversal of 216025135 is 531520612.

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

It is not a de Polignac number, because 216025135 - 2³ = 216025127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2874 + ... + 20983.

It is an arithmetic number, because the mean of its divisors is an integer number (32423022).

Almost surely, 2^216025135 is an apocalyptic number.

216025135 is a deficient number, since it is larger than the sum of its proper divisors (43359041).

216025135 is a wasteful number, since it uses less digits than its factorization.

216025135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25673.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 216025135 is about 14697.7935418892. The cubic root of 216025135 is about 600.0232722455.

Adding to 216025135 its reverse (531520612), we get a palindrome (747545747).

The spelling of 216025135 in words is "two hundred sixteen million, twenty-five thousand, one hundred thirty-five".