231227712 has 84 divisors (see below), whose sum is σ = 666046420. Its totient is φ = 76695552.

The previous prime is 231227677. The next prime is 231227713. The reversal of 231227712 is 217722132.

It can be written as a sum of positive squares in 2 ways, for example, as 104530176 + 126697536 = 10224^2 + 11256^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231227713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131028 + ... + 132780.

Almost surely, 2^231227712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231227712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (333023210).

231227712 is an abundant number, since it is smaller than the sum of its proper divisors (434818708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231227712 is a wasteful number, since it uses less digits than its factorization.

231227712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000 (or 1987 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 231227712 is about 15206.1734831614. The cubic root of 231227712 is about 613.7807929874.

Adding to 231227712 its reverse (217722132), we get a palindrome (448949844).

The spelling of 231227712 in words is "two hundred thirty-one million, two hundred twenty-seven thousand, seven hundred twelve".