13160725 has 6 divisors (see below), whose sum is σ = 16319330. Its totient is φ = 10528560.

The previous prime is 13160701. The next prime is 13160731. The reversal of 13160725 is 52706131.

It can be written as a sum of positive squares in 3 ways, for example, as 34596 + 13126129 = 186^2 + 3623^2 .

It is not a de Polignac number, because 13160725 - 2²¹ = 11063573 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: 526429 = 13160725 / (1 + 3 + 1 + 6 + 0 + 7 + 2 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 13160725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 263190 + ... + 263239.

Almost surely, 2^13160725 is an apocalyptic number.

It is an amenable number.

13160725 is a deficient number, since it is larger than the sum of its proper divisors (3158605).

13160725 is an equidigital number, since it uses as much as digits as its factorization.

13160725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526439 (or 526434 counting only the distinct ones).

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

The square root of 13160725 is about 3627.7713544268. The cubic root of 13160725 is about 236.0985236914.

Adding to 13160725 its reverse (52706131), we get a palindrome (65866856).

The spelling of 13160725 in words is "thirteen million, one hundred sixty thousand, seven hundred twenty-five".