13265961 has 4 divisors (see below), whose sum is σ = 17687952. Its totient is φ = 8843972.

The previous prime is 13265957. The next prime is 13265981. The reversal of 13265961 is 16956231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13265961 - 2² = 13265957 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13265911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2210991 + ... + 2210996.

It is an arithmetic number, because the mean of its divisors is an integer number (4421988).

Almost surely, 2^13265961 is an apocalyptic number.

It is an amenable number.

13265961 is a deficient number, since it is larger than the sum of its proper divisors (4421991).

13265961 is an equidigital number, since it uses as much as digits as its factorization.

13265961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4421990.

The product of its digits is 9720, while the sum is 33.

The square root of 13265961 is about 3642.2466967519. The cubic root of 13265961 is about 236.7261520336.

The spelling of 13265961 in words is "thirteen million, two hundred sixty-five thousand, nine hundred sixty-one".