131100625 has 20 divisors (see below), whose sum is σ = 167346432. Its totient is φ = 102626000.

The previous prime is 131100623. The next prime is 131100659. The reversal of 131100625 is 526001131.

It is not a de Polignac number, because 131100625 - 2¹ = 131100623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131100623) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 27144 + ... + 31606.

Almost surely, 2^131100625 is an apocalyptic number.

It is an amenable number.

131100625 is a deficient number, since it is larger than the sum of its proper divisors (36245807).

131100625 is an frugal number, since it uses more digits than its factorization.

131100625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4530 (or 4515 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 131100625 is about 11449.9181219780. The cubic root of 131100625 is about 508.0053125801.

Adding to 131100625 its reverse (526001131), we get a palindrome (657101756).

The spelling of 131100625 in words is "one hundred thirty-one million, one hundred thousand, six hundred twenty-five".