11691265 has 8 divisors (see below), whose sum is σ = 14066280. Its totient is φ = 9328512.

The previous prime is 11691259. The next prime is 11691293. The reversal of 11691265 is 56219611.

It can be written as a sum of positive squares in 4 ways, for example, as 3806401 + 7884864 = 1951^2 + 2808^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11691265 - 2¹⁵ = 11658497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 814 + ... + 4903.

It is an arithmetic number, because the mean of its divisors is an integer number (1758285).

Almost surely, 2^11691265 is an apocalyptic number.

It is an amenable number.

11691265 is a deficient number, since it is larger than the sum of its proper divisors (2375015).

11691265 is an equidigital number, since it uses as much as digits as its factorization.

11691265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6131.

The product of its digits is 3240, while the sum is 31.

The square root of 11691265 is about 3419.2491865905. The cubic root of 11691265 is about 226.9623579934.

The spelling of 11691265 in words is "eleven million, six hundred ninety-one thousand, two hundred sixty-five".