13100806 has 4 divisors (see below), whose sum is σ = 19651212. Its totient is φ = 6550402.

The previous prime is 13100783. The next prime is 13100809. The reversal of 13100806 is 60800131.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×13100806² = 343262235699272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13100809) 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 as a sum of consecutive naturals, namely, 3275200 + ... + 3275203.

It is an arithmetic number, because the mean of its divisors is an integer number (4912803).

Almost surely, 2^13100806 is an apocalyptic number.

13100806 is a deficient number, since it is larger than the sum of its proper divisors (6550406).

13100806 is an equidigital number, since it uses as much as digits as its factorization.

13100806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6550405.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 13100806 is about 3619.5035571194. The cubic root of 13100806 is about 235.7396703258.

Adding to 13100806 its reverse (60800131), we get a palindrome (73900937).

The spelling of 13100806 in words is "thirteen million, one hundred thousand, eight hundred six".