13145635 has 4 divisors (see below), whose sum is σ = 15774768. Its totient is φ = 10516504.

The previous prime is 13145617. The next prime is 13145651. The reversal of 13145635 is 53654131.

13145635 is nontrivially palindromic in base 4.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13145635 - 2⁵ = 13145603 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1314559 + ... + 1314568.

It is an arithmetic number, because the mean of its divisors is an integer number (3943692).

Almost surely, 2^13145635 is an apocalyptic number.

13145635 is a deficient number, since it is larger than the sum of its proper divisors (2629133).

13145635 is an equidigital number, since it uses as much as digits as its factorization.

13145635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2629132.

The product of its digits is 5400, while the sum is 28.

The square root of 13145635 is about 3625.6909686293. The cubic root of 13145635 is about 236.0082528475.

Adding to 13145635 its reverse (53654131), we get a palindrome (66799766).

The spelling of 13145635 in words is "thirteen million, one hundred forty-five thousand, six hundred thirty-five".