13068643 has 10 divisors (see below), whose sum is σ = 15248644. Its totient is φ = 11199636.

The previous prime is 13068619. The next prime is 13068661. The reversal of 13068643 is 34686031.

It is a de Polignac number, because none of the positive numbers 2^k-13068643 is a prime.

It is a super-2 number, since 2×13068643² = 341578859722898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13068613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 321 + ... + 5122.

Almost surely, 2^13068643 is an apocalyptic number.

13068643 is a deficient number, since it is larger than the sum of its proper divisors (2180001).

13068643 is an frugal number, since it uses more digits than its factorization.

13068643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5471 (or 5450 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 13068643 is about 3615.0578141988. The cubic root of 13068643 is about 235.5465954805.

The spelling of 13068643 in words is "thirteen million, sixty-eight thousand, six hundred forty-three".