13105265 has 4 divisors (see below), whose sum is σ = 15726324. Its totient is φ = 10484208.

The previous prime is 13105259. The next prime is 13105273. The reversal of 13105265 is 56250131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56250131 = 7 ⋅8035733.

It can be written as a sum of positive squares in 2 ways, for example, as 7311616 + 5793649 = 2704^2 + 2407^2 .

It is a cyclic number.

It is not a de Polignac number, because 13105265 - 2¹⁸ = 12843121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13105265.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1310522 + ... + 1310531.

It is an arithmetic number, because the mean of its divisors is an integer number (3931581).

Almost surely, 2^13105265 is an apocalyptic number.

It is an amenable number.

13105265 is a deficient number, since it is larger than the sum of its proper divisors (2621059).

13105265 is an equidigital number, since it uses as much as digits as its factorization.

13105265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2621058.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 13105265 is about 3620.1194731666. The cubic root of 13105265 is about 235.7664128014.

Adding to 13105265 its reverse (56250131), we get a palindrome (69355396).

The spelling of 13105265 in words is "thirteen million, one hundred five thousand, two hundred sixty-five".