131443325 has 24 divisors (see below), whose sum is σ = 176504328. Its totient is φ = 96526080.

The previous prime is 131443307. The next prime is 131443373. The reversal of 131443325 is 523344131.

It can be written as a sum of positive squares in 12 ways, for example, as 19971961 + 111471364 = 4469^2 + 10558^2 .

It is not a de Polignac number, because 131443325 - 2¹⁰ = 131442301 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131443294 and 131443303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62999 + ... + 65051.

It is an arithmetic number, because the mean of its divisors is an integer number (7354347).

Almost surely, 2^131443325 is an apocalyptic number.

It is an amenable number.

131443325 is a deficient number, since it is larger than the sum of its proper divisors (45061003).

131443325 is a wasteful number, since it uses less digits than its factorization.

131443325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2273 (or 2268 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 131443325 is about 11464.8735274315. The cubic root of 131443325 is about 508.4475732375.

Adding to 131443325 its reverse (523344131), we get a palindrome (654787456).

The spelling of 131443325 in words is "one hundred thirty-one million, four hundred forty-three thousand, three hundred twenty-five".