12131025 has 24 divisors (see below), whose sum is σ = 21114720. Its totient is φ = 6128640.

The previous prime is 12131017. The next prime is 12131027. The reversal of 12131025 is 52013121.

12131025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12131025 - 2³ = 12131017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 12130995 and 12131013.

It is not an unprimeable number, because it can be changed into a prime (12131027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2832 + ... + 5681.

It is an arithmetic number, because the mean of its divisors is an integer number (879780).

Almost surely, 2^12131025 is an apocalyptic number.

12131025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12131025 is a deficient number, since it is larger than the sum of its proper divisors (8983695).

12131025 is a wasteful number, since it uses less digits than its factorization.

12131025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8545 (or 8540 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 12131025 is about 3482.9621014303. The cubic root of 12131025 is about 229.7730906431.

Adding to 12131025 its reverse (52013121), we get a palindrome (64144146).

The spelling of 12131025 in words is "twelve million, one hundred thirty-one thousand, twenty-five".