13165745 has 8 divisors (see below), whose sum is σ = 15999360. Its totient is φ = 10398960.

The previous prime is 13165721. The next prime is 13165751. The reversal of 13165745 is 54756131.

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

It is not a de Polignac number, because 13165745 - 2⁸ = 13165489 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 16271 + ... + 17060.

It is an arithmetic number, because the mean of its divisors is an integer number (1999920).

Almost surely, 2^13165745 is an apocalyptic number.

It is an amenable number.

13165745 is a deficient number, since it is larger than the sum of its proper divisors (2833615).

13165745 is an equidigital number, since it uses as much as digits as its factorization.

13165745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33415.

The product of its digits is 12600, while the sum is 32.

The square root of 13165745 is about 3628.4631733008. The cubic root of 13165745 is about 236.1285388546.

The spelling of 13165745 in words is "thirteen million, one hundred sixty-five thousand, seven hundred forty-five".