13120265 has 4 divisors (see below), whose sum is σ = 15744324. Its totient is φ = 10496208.

The previous prime is 13120253. The next prime is 13120271. The reversal of 13120265 is 56202131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5257849 + 7862416 = 2293^2 + 2804^2 .

It is a cyclic number.

It is not a de Polignac number, because 13120265 - 2⁶ = 13120201 is a prime.

It is a Duffinian number.

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, 1312022 + ... + 1312031.

It is an arithmetic number, because the mean of its divisors is an integer number (3936081).

Almost surely, 2^13120265 is an apocalyptic number.

It is an amenable number.

13120265 is a deficient number, since it is larger than the sum of its proper divisors (2624059).

13120265 is an equidigital number, since it uses as much as digits as its factorization.

13120265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2624058.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 13120265 is about 3622.1906355133. The cubic root of 13120265 is about 235.8563295329.

Adding to 13120265 its reverse (56202131), we get a palindrome (69322396).

The spelling of 13120265 in words is "thirteen million, one hundred twenty thousand, two hundred sixty-five".