231225752 has 8 divisors (see below), whose sum is σ = 433548300. Its totient is φ = 115612872.

The previous prime is 231225751. The next prime is 231225767. The reversal of 231225752 is 257522132.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231225751) 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 as a sum of consecutive naturals, namely, 14451602 + ... + 14451617.

Almost surely, 2^231225752 is an apocalyptic number.

It is an amenable number.

231225752 is a deficient number, since it is larger than the sum of its proper divisors (202322548).

231225752 is a wasteful number, since it uses less digits than its factorization.

231225752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28903225 (or 28903221 counting only the distinct ones).

The product of its digits is 8400, while the sum is 29.

The square root of 231225752 is about 15206.1090355160. The cubic root of 231225752 is about 613.7790587464.

Adding to 231225752 its reverse (257522132), we get a palindrome (488747884).

The spelling of 231225752 in words is "two hundred thirty-one million, two hundred twenty-five thousand, seven hundred fifty-two".