130016725 has 6 divisors (see below), whose sum is σ = 161220770. Its totient is φ = 104013360.

The previous prime is 130016701. The next prime is 130016729. The reversal of 130016725 is 527610031.

It can be written as a sum of positive squares in 3 ways, for example, as 79524 + 129937201 = 282^2 + 11399^2 .

It is not a de Polignac number, because 130016725 - 2⁵ = 130016693 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 5200669 = 130016725 / (1 + 3 + 0 + 0 + 1 + 6 + 7 + 2 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 130016725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130016729) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2600310 + ... + 2600359.

Almost surely, 2^130016725 is an apocalyptic number.

It is an amenable number.

130016725 is a deficient number, since it is larger than the sum of its proper divisors (31204045).

130016725 is an equidigital number, since it uses as much as digits as its factorization.

130016725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5200679 (or 5200674 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 130016725 is about 11402.4876671716. The cubic root of 130016725 is about 506.6014254542.

Adding to 130016725 its reverse (527610031), we get a palindrome (657626756).

The spelling of 130016725 in words is "one hundred thirty million, sixteen thousand, seven hundred twenty-five".