16131125 has 8 divisors (see below), whose sum is σ = 20131800. Its totient is φ = 12904800.

The previous prime is 16131109. The next prime is 16131127. The reversal of 16131125 is 52113161.

16131125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 75076 + 16056049 = 274^2 + 4007^2 .

It is not a de Polignac number, because 16131125 - 2⁴ = 16131109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16131097 and 16131106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16131127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64400 + ... + 64649.

It is an arithmetic number, because the mean of its divisors is an integer number (2516475).

Almost surely, 2^16131125 is an apocalyptic number.

It is an amenable number.

16131125 is a deficient number, since it is larger than the sum of its proper divisors (4000675).

16131125 is an equidigital number, since it uses as much as digits as its factorization.

16131125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129064 (or 129054 counting only the distinct ones).

The product of its digits is 180, while the sum is 20.

The square root of 16131125 is about 4016.3571803315. The cubic root of 16131125 is about 252.6707011591.

Adding to 16131125 its reverse (52113161), we get a palindrome (68244286).

The spelling of 16131125 in words is "sixteen million, one hundred thirty-one thousand, one hundred twenty-five".