131233325 has 6 divisors (see below), whose sum is σ = 162729354. Its totient is φ = 104986640.

The previous prime is 131233321. The next prime is 131233357. The reversal of 131233325 is 523332131.

It can be written as a sum of positive squares in 3 ways, for example, as 28697449 + 102535876 = 5357^2 + 10126^2 .

It is not a de Polignac number, because 131233325 - 2² = 131233321 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 131233325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131233321) 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, 2624642 + ... + 2624691.

It is an arithmetic number, because the mean of its divisors is an integer number (27121559).

Almost surely, 2^131233325 is an apocalyptic number.

It is an amenable number.

131233325 is a deficient number, since it is larger than the sum of its proper divisors (31496029).

131233325 is an equidigital number, since it uses as much as digits as its factorization.

131233325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5249343 (or 5249338 counting only the distinct ones).

The product of its digits is 1620, while the sum is 23.

The square root of 131233325 is about 11455.7114576093. The cubic root of 131233325 is about 508.1766557064.

Adding to 131233325 its reverse (523332131), we get a palindrome (654565456).

The spelling of 131233325 in words is "one hundred thirty-one million, two hundred thirty-three thousand, three hundred twenty-five".