216047041 has 4 divisors (see below), whose sum is σ = 246910912. Its totient is φ = 185183172.

The previous prime is 216046997. The next prime is 216047053. The reversal of 216047041 is 140740612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 216047041 - 2⁷ = 216046913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216046997 and 216047015.

It is not an unprimeable number, because it can be changed into a prime (216047141) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 15431925 + ... + 15431938.

It is an arithmetic number, because the mean of its divisors is an integer number (61727728).

Almost surely, 2^216047041 is an apocalyptic number.

It is an amenable number.

216047041 is a deficient number, since it is larger than the sum of its proper divisors (30863871).

216047041 is an equidigital number, since it uses as much as digits as its factorization.

216047041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30863870.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 216047041 is about 14698.5387368949. The cubic root of 216047041 is about 600.0435533199.

Adding to 216047041 its reverse (140740612), we get a palindrome (356787653).

The spelling of 216047041 in words is "two hundred sixteen million, forty-seven thousand, forty-one".