13551912 has 96 divisors (see below), whose sum is σ = 40772160. Its totient is φ = 4032000.

The previous prime is 13551869. The next prime is 13551913. The reversal of 13551912 is 21915531.

13551912 is a `hidden beast` number, since 135 + 519 + 12 = 666.

It is not an unprimeable number, because it can be changed into a prime (13551913) 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 23 ways as a sum of consecutive naturals, for example, 56112 + ... + 56352.

It is an arithmetic number, because the mean of its divisors is an integer number (424710).

Almost surely, 2^13551912 is an apocalyptic number.

13551912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13551912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20386080).

13551912 is an abundant number, since it is smaller than the sum of its proper divisors (27220248).

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

13551912 is a wasteful number, since it uses less digits than its factorization.

13551912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335 (or 328 counting only the distinct ones).

The product of its digits is 1350, while the sum is 27.

The square root of 13551912 is about 3681.2921644444. The cubic root of 13551912 is about 238.4149717336.

It can be divided in two parts, 135519 and 12, that added together give a palindrome (135531).

The spelling of 13551912 in words is "thirteen million, five hundred fifty-one thousand, nine hundred twelve".