231225353 has 2 divisors, whose sum is σ = 231225354. Its totient is φ = 231225352.

The previous prime is 231225331. The next prime is 231225359. The reversal of 231225353 is 353522132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 224610169 + 6615184 = 14987^2 + 2572^2 .

It is a cyclic number.

It is not a de Polignac number, because 231225353 - 2⁸ = 231225097 is a prime.

It is not a weakly prime, because it can be changed into another prime (231225359) by changing a digit.

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 as a sum of consecutive naturals, namely, 115612676 + 115612677.

It is an arithmetic number, because the mean of its divisors is an integer number (115612677).

Almost surely, 2^231225353 is an apocalyptic number.

It is an amenable number.

231225353 is a deficient number, since it is larger than the sum of its proper divisors (1).

231225353 is an equidigital number, since it uses as much as digits as its factorization.

231225353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 26.

The square root of 231225353 is about 15206.0959157832. The cubic root of 231225353 is about 613.7787057033.

Adding to 231225353 its reverse (353522132), we get a palindrome (584747485).

The spelling of 231225353 in words is "two hundred thirty-one million, two hundred twenty-five thousand, three hundred fifty-three".