216541046 has 8 divisors (see below), whose sum is σ = 324929880. Its totient is φ = 108231088.

The previous prime is 216541037. The next prime is 216541063. The reversal of 216541046 is 640145612.

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

It is a Curzon number.

It is a congruent number.

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, 12296 + ... + 24171.

It is an arithmetic number, because the mean of its divisors is an integer number (40616235).

Almost surely, 2^216541046 is an apocalyptic number.

216541046 is a deficient number, since it is larger than the sum of its proper divisors (108388834).

216541046 is a wasteful number, since it uses less digits than its factorization.

216541046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39438.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 216541046 is about 14715.3337033178. Note that the first 3 decimals coincide. The cubic root of 216541046 is about 600.5005508172.

Adding to 216541046 its reverse (640145612), we get a palindrome (856686658).

The spelling of 216541046 in words is "two hundred sixteen million, five hundred forty-one thousand, forty-six".