13643065 has 8 divisors (see below), whose sum is σ = 16470720. Its totient is φ = 10848432.

The previous prime is 13643053. The next prime is 13643087. The reversal of 13643065 is 56034631.

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 13643065 - 2⁹ = 13642553 is a prime.

It is a super-2 number, since 2×13643065² = 372266445188450, which contains 22 as substring.

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, 7335 + ... + 9004.

It is an arithmetic number, because the mean of its divisors is an integer number (2058840).

Almost surely, 2^13643065 is an apocalyptic number.

It is an amenable number.

13643065 is a deficient number, since it is larger than the sum of its proper divisors (2827655).

13643065 is a wasteful number, since it uses less digits than its factorization.

13643065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16511.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 13643065 is about 3693.6519868553. The cubic root of 13643065 is about 238.9483207298.

Adding to 13643065 its reverse (56034631), we get a palindrome (69677696).

The spelling of 13643065 in words is "thirteen million, six hundred forty-three thousand, sixty-five".