65131125 has 16 divisors (see below), whose sum is σ = 108378816. Its totient is φ = 34736400.

The previous prime is 65131109. The next prime is 65131127. The reversal of 65131125 is 52113156.

It is not a de Polignac number, because 65131125 - 2⁴ = 65131109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65131095 and 65131104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65131127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86467 + ... + 87216.

It is an arithmetic number, because the mean of its divisors is an integer number (6773676).

Almost surely, 2^65131125 is an apocalyptic number.

It is an amenable number.

65131125 is a deficient number, since it is larger than the sum of its proper divisors (43247691).

65131125 is a wasteful number, since it uses less digits than its factorization.

65131125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173701 (or 173691 counting only the distinct ones).

The product of its digits is 900, while the sum is 24.

The square root of 65131125 is about 8070.3856785162. The cubic root of 65131125 is about 402.3427622906.

It can be divided in two parts, 65131 and 125, that added together give a palindrome (65256).

The spelling of 65131125 in words is "sixty-five million, one hundred thirty-one thousand, one hundred twenty-five".