216229151 has 8 divisors (see below), whose sum is σ = 219866400. Its totient is φ = 212608480.

The previous prime is 216229129. The next prime is 216229157. The reversal of 216229151 is 151922612.

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 216229151 - 2¹⁰ = 216228127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216229157) 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, 23705 + ... + 31533.

It is an arithmetic number, because the mean of its divisors is an integer number (27483300).

Almost surely, 2^216229151 is an apocalyptic number.

216229151 is a deficient number, since it is larger than the sum of its proper divisors (3637249).

216229151 is an equidigital number, since it uses as much as digits as its factorization.

216229151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8289.

The product of its digits is 2160, while the sum is 29.

The square root of 216229151 is about 14704.7322654987. The cubic root of 216229151 is about 600.2121018643.

It can be divided in two parts, 2162 and 29151, that added together give a palindrome (31313).

The spelling of 216229151 in words is "two hundred sixteen million, two hundred twenty-nine thousand, one hundred fifty-one".