216120529 has 8 divisors (see below), whose sum is σ = 217226240. Its totient is φ = 215018496.

The previous prime is 216120503. The next prime is 216120533. The reversal of 216120529 is 925021612.

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 216120529 - 2⁹ = 216120017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216120497 and 216120506.

It is not an unprimeable number, because it can be changed into a prime (216120539) 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, 280657 + ... + 281425.

It is an arithmetic number, because the mean of its divisors is an integer number (27153280).

Almost surely, 2^216120529 is an apocalyptic number.

It is an amenable number.

216120529 is a deficient number, since it is larger than the sum of its proper divisors (1105711).

216120529 is an equidigital number, since it uses as much as digits as its factorization.

216120529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 216120529 is about 14701.0383646870. The cubic root of 216120529 is about 600.1115801744. Note that the first 3 decimals are identical.

The spelling of 216120529 in words is "two hundred sixteen million, one hundred twenty thousand, five hundred twenty-nine".