216140335 has 16 divisors (see below), whose sum is σ = 269231040. Its totient is φ = 166378240.

The previous prime is 216140299. The next prime is 216140359. The reversal of 216140335 is 533041612.

It is not a de Polignac number, because 216140335 - 2⁷ = 216140207 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 42699 + ... + 47491.

It is an arithmetic number, because the mean of its divisors is an integer number (16826940).

Almost surely, 2^216140335 is an apocalyptic number.

216140335 is a deficient number, since it is larger than the sum of its proper divisors (53090705).

216140335 is a wasteful number, since it uses less digits than its factorization.

216140335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5138.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 216140335 is about 14701.7119751409. The cubic root of 216140335 is about 600.1299116844.

Adding to 216140335 its reverse (533041612), we get a palindrome (749181947).

The spelling of 216140335 in words is "two hundred sixteen million, one hundred forty thousand, three hundred thirty-five".