13981100 has 36 divisors (see below), whose sum is σ = 34674864. Its totient is φ = 4793280.

The previous prime is 13981027. The next prime is 13981111. The reversal of 13981100 is 118931.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 9287 + ... + 10686.

Almost surely, 2^13981100 is an apocalyptic number.

13981100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13981100 is an abundant number, since it is smaller than the sum of its proper divisors (20693764).

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

13981100 is a wasteful number, since it uses less digits than its factorization.

13981100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19994 (or 19987 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 13981100 is about 3739.1309150657. The cubic root of 13981100 is about 240.9057211736.

The spelling of 13981100 in words is "thirteen million, nine hundred eighty-one thousand, one hundred".