331130525 has 24 divisors (see below), whose sum is σ = 449477184. Its totient is φ = 239990400.

The previous prime is 331130483. The next prime is 331130531. The reversal of 331130525 is 525031133.

It is not a de Polignac number, because 331130525 - 2²⁰ = 330081949 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 331130525.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84152 + ... + 87998.

It is an arithmetic number, because the mean of its divisors is an integer number (18728216).

Almost surely, 2^331130525 is an apocalyptic number.

It is an amenable number.

331130525 is a deficient number, since it is larger than the sum of its proper divisors (118346659).

331130525 is a wasteful number, since it uses less digits than its factorization.

331130525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4181 (or 4176 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 331130525 is about 18196.9921965142. The cubic root of 331130525 is about 691.8305555091.

Adding to 331130525 its reverse (525031133), we get a palindrome (856161658).

The spelling of 331130525 in words is "three hundred thirty-one million, one hundred thirty thousand, five hundred twenty-five".