216532153 has 4 divisors (see below), whose sum is σ = 216565888. Its totient is φ = 216498420.

The previous prime is 216532093. The next prime is 216532157. The reversal of 216532153 is 351235612.

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 216532153 - 2⁹ = 216531641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216532157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3933 + ... + 21178.

It is an arithmetic number, because the mean of its divisors is an integer number (54141472).

Almost surely, 2^216532153 is an apocalyptic number.

It is an amenable number.

216532153 is a deficient number, since it is larger than the sum of its proper divisors (33735).

216532153 is an equidigital number, since it uses as much as digits as its factorization.

216532153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33734.

The product of its digits is 5400, while the sum is 28.

The square root of 216532153 is about 14715.0315324161. The cubic root of 216532153 is about 600.4923301671.

Adding to 216532153 its reverse (351235612), we get a palindrome (567767765).

The spelling of 216532153 in words is "two hundred sixteen million, five hundred thirty-two thousand, one hundred fifty-three".