216136147 has 4 divisors (see below), whose sum is σ = 228850056. Its totient is φ = 203422240.

The previous prime is 216136139. The next prime is 216136157. The reversal of 216136147 is 741631612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 216136147 - 2³ = 216136139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216136157) 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 3 ways as a sum of consecutive naturals, for example, 6356929 + ... + 6356962.

It is an arithmetic number, because the mean of its divisors is an integer number (57212514).

Almost surely, 2^216136147 is an apocalyptic number.

216136147 is a deficient number, since it is larger than the sum of its proper divisors (12713909).

216136147 is a wasteful number, since it uses less digits than its factorization.

216136147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12713908.

The product of its digits is 6048, while the sum is 31.

The square root of 216136147 is about 14701.5695420591. The cubic root of 216136147 is about 600.1260355602.

Adding to 216136147 its reverse (741631612), we get a palindrome (957767759).

The spelling of 216136147 in words is "two hundred sixteen million, one hundred thirty-six thousand, one hundred forty-seven".