13106643 has 32 divisors (see below), whose sum is σ = 20570112. Its totient is φ = 7334400.

The previous prime is 13106641. The next prime is 13106659. The reversal of 13106643 is 34660131.

It is not a de Polignac number, because 13106643 - 2¹ = 13106641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13106641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34030 + ... + 34412.

It is an arithmetic number, because the mean of its divisors is an integer number (642816).

Almost surely, 2^13106643 is an apocalyptic number.

13106643 is a deficient number, since it is larger than the sum of its proper divisors (7463469).

13106643 is a wasteful number, since it uses less digits than its factorization.

13106643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 13106643 is about 3620.3097933740. The cubic root of 13106643 is about 235.7746760129.

Adding to 13106643 its reverse (34660131), we get a palindrome (47766774).

The spelling of 13106643 in words is "thirteen million, one hundred six thousand, six hundred forty-three".