231427216 has 20 divisors (see below), whose sum is σ = 451620400. Its totient is φ = 114880032.

The previous prime is 231427213. The next prime is 231427241. The reversal of 231427216 is 612724132.

It is not an unprimeable number, because it can be changed into a prime (231427211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49806 + ... + 54253.

It is an arithmetic number, because the mean of its divisors is an integer number (22581020).

Almost surely, 2^231427216 is an apocalyptic number.

It is an amenable number.

231427216 is a deficient number, since it is larger than the sum of its proper divisors (220193184).

231427216 is a wasteful number, since it uses less digits than its factorization.

231427216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104206 (or 104200 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 231427216 is about 15212.7320360282. The cubic root of 231427216 is about 613.9572662453.

The spelling of 231427216 in words is "two hundred thirty-one million, four hundred twenty-seven thousand, two hundred sixteen".