131544325 has 12 divisors (see below), whose sum is σ = 177943968. Its totient is φ = 95668400.

The previous prime is 131544323. The next prime is 131544341. The reversal of 131544325 is 523445131.

It is not a de Polignac number, because 131544325 - 2¹ = 131544323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131544293 and 131544302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131544323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 238897 + ... + 239446.

It is an arithmetic number, because the mean of its divisors is an integer number (14828664).

Almost surely, 2^131544325 is an apocalyptic number.

It is an amenable number.

131544325 is a deficient number, since it is larger than the sum of its proper divisors (46399643).

131544325 is a wasteful number, since it uses less digits than its factorization.

131544325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478364 (or 478359 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 131544325 is about 11469.2774401878. The cubic root of 131544325 is about 508.5777689128.

Adding to 131544325 its reverse (523445131), we get a palindrome (654989456).

The spelling of 131544325 in words is "one hundred thirty-one million, five hundred forty-four thousand, three hundred twenty-five".