216348147 has 12 divisors (see below), whose sum is σ = 316905264. Its totient is φ = 142200240.

The previous prime is 216348131. The next prime is 216348169. The reversal of 216348147 is 741843612.

216348147 is a `hidden beast` number, since 2 + 1 + 634 + 8 + 14 + 7 = 666.

It is not a de Polignac number, because 216348147 - 2⁴ = 216348131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216348127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168648 + ... + 169925.

It is an arithmetic number, because the mean of its divisors is an integer number (26408772).

Almost surely, 2^216348147 is an apocalyptic number.

216348147 is a deficient number, since it is larger than the sum of its proper divisors (100557117).

216348147 is a wasteful number, since it uses less digits than its factorization.

216348147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338650 (or 338647 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 216348147 is about 14708.7778894101. Note that the first 3 decimals coincide. The cubic root of 216348147 is about 600.3221852968.

The spelling of 216348147 in words is "two hundred sixteen million, three hundred forty-eight thousand, one hundred forty-seven".