231228232 has 16 divisors (see below), whose sum is σ = 433953900. Its totient is φ = 115507200.

The previous prime is 231228227. The next prime is 231228251. The reversal of 231228232 is 232822132.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 226622916 + 4605316 = 15054^2 + 2146^2 .

It is a junction number, because it is equal to n+sod(n) for n = 231228197 and 231228206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3769 + ... + 21832.

Almost surely, 2^231228232 is an apocalyptic number.

It is an amenable number.

231228232 is a deficient number, since it is larger than the sum of its proper divisors (202725668).

231228232 is a wasteful number, since it uses less digits than its factorization.

231228232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26736 (or 26732 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 231228232 is about 15206.1905814704. The cubic root of 231228232 is about 613.7812530906.

The spelling of 231228232 in words is "two hundred thirty-one million, two hundred twenty-eight thousand, two hundred thirty-two".