13972565 has 8 divisors (see below), whose sum is σ = 16997208. Its totient is φ = 11024640.

The previous prime is 13972507. The next prime is 13972573. The reversal of 13972565 is 56527931.

It is a happy number.

13972565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5340721 + 8631844 = 2311^2 + 2938^2 .

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

It is not a de Polignac number, because 13972565 - 2²² = 9778261 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 18776 + ... + 19505.

It is an arithmetic number, because the mean of its divisors is an integer number (2124651).

Almost surely, 2^13972565 is an apocalyptic number.

It is an amenable number.

13972565 is a deficient number, since it is larger than the sum of its proper divisors (3024643).

13972565 is an equidigital number, since it uses as much as digits as its factorization.

13972565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38359.

The product of its digits is 56700, while the sum is 38.

The square root of 13972565 is about 3737.9894328369. The cubic root of 13972565 is about 240.8566895316.

The spelling of 13972565 in words is "thirteen million, nine hundred seventy-two thousand, five hundred sixty-five".