13881107 has 4 divisors (see below), whose sum is σ = 14116440. Its totient is φ = 13645776.

The previous prime is 13881097. The next prime is 13881143. The reversal of 13881107 is 70118831.

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

It is a cyclic number.

It is not a de Polignac number, because 13881107 - 2²⁰ = 12832531 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13881107.

It is not an unprimeable number, because it can be changed into a prime (13881407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117578 + ... + 117695.

It is an arithmetic number, because the mean of its divisors is an integer number (3529110).

Almost surely, 2^13881107 is an apocalyptic number.

13881107 is a deficient number, since it is larger than the sum of its proper divisors (235333).

13881107 is an equidigital number, since it uses as much as digits as its factorization.

13881107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235332.

The product of its (nonzero) digits is 1344, while the sum is 29.

The square root of 13881107 is about 3725.7357662615. The cubic root of 13881107 is about 240.3300262937.

Adding to 13881107 its reverse (70118831), we get a palindrome (83999938).

The spelling of 13881107 in words is "thirteen million, eight hundred eighty-one thousand, one hundred seven".