123520325 has 6 divisors (see below), whose sum is σ = 153165234. Its totient is φ = 98816240.

The previous prime is 123520321. The next prime is 123520343. The reversal of 123520325 is 523025321.

It can be written as a sum of positive squares in 3 ways, for example, as 1329409 + 122190916 = 1153^2 + 11054^2 .

It is not a de Polignac number, because 123520325 - 2² = 123520321 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 123520325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123520321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2470382 + ... + 2470431.

It is an arithmetic number, because the mean of its divisors is an integer number (25527539).

Almost surely, 2^123520325 is an apocalyptic number.

It is an amenable number.

123520325 is a deficient number, since it is larger than the sum of its proper divisors (29644909).

123520325 is an equidigital number, since it uses as much as digits as its factorization.

123520325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4940823 (or 4940818 counting only the distinct ones).

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

The square root of 123520325 is about 11113.9698128077. The cubic root of 123520325 is about 498.0192637291.

Adding to 123520325 its reverse (523025321), we get a palindrome (646545646).

The spelling of 123520325 in words is "one hundred twenty-three million, five hundred twenty thousand, three hundred twenty-five".