13201643 has 16 divisors (see below), whose sum is σ = 16343040. Its totient is φ = 10384416.

The previous prime is 13201633. The next prime is 13201649. The reversal of 13201643 is 34610231.

It is not a de Polignac number, because 13201643 - 2⁶ = 13201579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13201649) 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 15 ways as a sum of consecutive naturals, for example, 21446 + ... + 22052.

It is an arithmetic number, because the mean of its divisors is an integer number (1021440).

Almost surely, 2^13201643 is an apocalyptic number.

13201643 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13201643 is a deficient number, since it is larger than the sum of its proper divisors (3141397).

13201643 is a wasteful number, since it uses less digits than its factorization.

13201643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 13201643 is about 3633.4065283147. The cubic root of 13201643 is about 236.3429551252.

Adding to 13201643 its reverse (34610231), we get a palindrome (47811874).

The spelling of 13201643 in words is "thirteen million, two hundred one thousand, six hundred forty-three".