123205325 has 6 divisors (see below), whose sum is σ = 152774634. Its totient is φ = 98564240.

The previous prime is 123205321. The next prime is 123205331. The reversal of 123205325 is 523502321.

It can be written as a sum of positive squares in 3 ways, for example, as 20912329 + 102292996 = 4573^2 + 10114^2 .

It is not a de Polignac number, because 123205325 - 2² = 123205321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123205325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123205321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2464082 + ... + 2464131.

It is an arithmetic number, because the mean of its divisors is an integer number (25462439).

Almost surely, 2^123205325 is an apocalyptic number.

It is an amenable number.

123205325 is a deficient number, since it is larger than the sum of its proper divisors (29569309).

123205325 is an equidigital number, since it uses as much as digits as its factorization.

123205325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4928223 (or 4928218 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 123205325 is about 11099.7894124168. The cubic root of 123205325 is about 497.5955558311.

Adding to 123205325 its reverse (523502321), we get a palindrome (646707646).

The spelling of 123205325 in words is "one hundred twenty-three million, two hundred five thousand, three hundred twenty-five".