13911371 has 4 divisors (see below), whose sum is σ = 14287392. Its totient is φ = 13535352.

The previous prime is 13911353. The next prime is 13911383. The reversal of 13911371 is 17311931.

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 13911371 - 2⁶ = 13911307 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 13911371.

It is not an unprimeable number, because it can be changed into a prime (13911311) 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, 187955 + ... + 188028.

It is an arithmetic number, because the mean of its divisors is an integer number (3571848).

Almost surely, 2^13911371 is an apocalyptic number.

13911371 is a deficient number, since it is larger than the sum of its proper divisors (376021).

13911371 is an equidigital number, since it uses as much as digits as its factorization.

13911371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376020.

The product of its digits is 567, while the sum is 26.

The square root of 13911371 is about 3729.7950345830. The cubic root of 13911371 is about 240.5045577259.

The spelling of 13911371 in words is "thirteen million, nine hundred eleven thousand, three hundred seventy-one".