216031084 has 12 divisors (see below), whose sum is σ = 379847608. Its totient is φ = 107503200.

The previous prime is 216031069. The next prime is 216031099. The reversal of 216031084 is 480130612.

It is an interprime number because it is at equal distance from previous prime (216031069) and next prime (216031099).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127137 + ... + 128824.

Almost surely, 2^216031084 is an apocalyptic number.

It is an amenable number.

216031084 is a deficient number, since it is larger than the sum of its proper divisors (163816524).

216031084 is a wasteful number, since it uses less digits than its factorization.

216031084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256176 (or 256174 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 216031084 is about 14697.9959178114. The cubic root of 216031084 is about 600.0287801010.

Adding to 216031084 its reverse (480130612), we get a palindrome (696161696).

The spelling of 216031084 in words is "two hundred sixteen million, thirty-one thousand, eighty-four".