13045643 has 8 divisors (see below), whose sum is σ = 14280336. Its totient is φ = 11844000.

The previous prime is 13045631. The next prime is 13045657. The reversal of 13045643 is 34654031.

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 13045643 - 2⁸ = 13045387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13045603) 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 7 ways as a sum of consecutive naturals, for example, 7433 + ... + 9018.

It is an arithmetic number, because the mean of its divisors is an integer number (1785042).

Almost surely, 2^13045643 is an apocalyptic number.

13045643 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13045643 is a deficient number, since it is larger than the sum of its proper divisors (1234693).

13045643 is a wasteful number, since it uses less digits than its factorization.

13045643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16525.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 13045643 is about 3611.8752747015. The cubic root of 13045643 is about 235.4083318775.

Adding to 13045643 its reverse (34654031), we get a palindrome (47699674).

The spelling of 13045643 in words is "thirteen million, forty-five thousand, six hundred forty-three".