13805112 has 16 divisors (see below), whose sum is σ = 34512840. Its totient is φ = 4601696.

The previous prime is 13805101. The next prime is 13805117. The reversal of 13805112 is 21150831.

It is a super-2 number, since 2×13805112² = 381162234665088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13805117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287583 + ... + 287630.

Almost surely, 2^13805112 is an apocalyptic number.

13805112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13805112 is an abundant number, since it is smaller than the sum of its proper divisors (20707728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13805112 is a wasteful number, since it uses less digits than its factorization.

13805112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575222 (or 575218 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 13805112 is about 3715.5231125644. The cubic root of 13805112 is about 239.8906446245.

Adding to 13805112 its reverse (21150831), we get a palindrome (34955943).

The spelling of 13805112 in words is "thirteen million, eight hundred five thousand, one hundred twelve".