13975565 has 8 divisors (see below), whose sum is σ = 16811520. Its totient is φ = 11153232.

The previous prime is 13975541. The next prime is 13975567. The reversal of 13975565 is 56557931.

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 13975565 - 2¹² = 13971469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13975567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 989 + ... + 5378.

It is an arithmetic number, because the mean of its divisors is an integer number (2101440).

Almost surely, 2^13975565 is an apocalyptic number.

It is an amenable number.

13975565 is a deficient number, since it is larger than the sum of its proper divisors (2835955).

13975565 is an equidigital number, since it uses as much as digits as its factorization.

13975565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6811.

The product of its digits is 141750, while the sum is 41.

The square root of 13975565 is about 3738.3906965431. The cubic root of 13975565 is about 240.8739261273.

The spelling of 13975565 in words is "thirteen million, nine hundred seventy-five thousand, five hundred sixty-five".