216529041 has 8 divisors (see below), whose sum is σ = 289538784. Its totient is φ = 143936000.

The previous prime is 216529039. The next prime is 216529043. The reversal of 216529041 is 140925612.

It is an interprime number because it is at equal distance from previous prime (216529039) and next prime (216529043).

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

It is a cyclic number.

It is not a de Polignac number, because 216529041 - 2¹ = 216529039 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (216529043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102960 + ... + 105041.

It is an arithmetic number, because the mean of its divisors is an integer number (36192348).

Almost surely, 2^216529041 is an apocalyptic number.

It is an amenable number.

216529041 is a deficient number, since it is larger than the sum of its proper divisors (73009743).

216529041 is a wasteful number, since it uses less digits than its factorization.

216529041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208351.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 216529041 is about 14714.9257898231. The cubic root of 216529041 is about 600.4894533948.

The spelling of 216529041 in words is "two hundred sixteen million, five hundred twenty-nine thousand, forty-one".