13921105 has 16 divisors (see below), whose sum is σ = 18376704. Its totient is φ = 10039680.

The previous prime is 13921081. The next prime is 13921123. The reversal of 13921105 is 50112931.

13921105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13921105 - 2¹⁷ = 13790033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5989 + ... + 7981.

It is an arithmetic number, because the mean of its divisors is an integer number (1148544).

Almost surely, 2^13921105 is an apocalyptic number.

It is an amenable number.

13921105 is a deficient number, since it is larger than the sum of its proper divisors (4455599).

13921105 is a wasteful number, since it uses less digits than its factorization.

13921105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 13921105 is about 3731.0997038407. The cubic root of 13921105 is about 240.5606395587.

The spelling of 13921105 in words is "thirteen million, nine hundred twenty-one thousand, one hundred five".