231222452 has 48 divisors (see below), whose sum is σ = 436378320. Its totient is φ = 106982400.

The previous prime is 231222379. The next prime is 231222487. The reversal of 231222452 is 254222132.

231222452 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 69322276 + 161900176 = 8326^2 + 12724^2 .

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 289718 + ... + 290514.

It is an arithmetic number, because the mean of its divisors is an integer number (9091215).

Almost surely, 2^231222452 is an apocalyptic number.

It is an amenable number.

231222452 is a deficient number, since it is larger than the sum of its proper divisors (205155868).

231222452 is a wasteful number, since it uses less digits than its factorization.

231222452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932 (or 930 counting only the distinct ones).

The product of its digits is 1920, while the sum is 23.

The square root of 231222452 is about 15206.0005261081. Note that the first 3 decimals coincide. The cubic root of 231222452 is about 613.7761388287.

Adding to 231222452 its reverse (254222132), we get a palindrome (485444584).

The spelling of 231222452 in words is "two hundred thirty-one million, two hundred twenty-two thousand, four hundred fifty-two".