131659825 has 12 divisors (see below), whose sum is σ = 178100208. Its totient is φ = 95752400.

The previous prime is 131659823. The next prime is 131659837. The reversal of 131659825 is 528956131.

It is not a de Polignac number, because 131659825 - 2¹ = 131659823 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131659823) 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, 239107 + ... + 239656.

It is an arithmetic number, because the mean of its divisors is an integer number (14841684).

Almost surely, 2^131659825 is an apocalyptic number.

It is an amenable number.

131659825 is a deficient number, since it is larger than the sum of its proper divisors (46440383).

131659825 is a wasteful number, since it uses less digits than its factorization.

131659825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478784 (or 478779 counting only the distinct ones).

The product of its digits is 64800, while the sum is 40.

The square root of 131659825 is about 11474.3115261875. The cubic root of 131659825 is about 508.7265743912.

It can be divided in two parts, 131 and 659825, that added together give a palindrome (659956).

The spelling of 131659825 in words is "one hundred thirty-one million, six hundred fifty-nine thousand, eight hundred twenty-five".