13981171 has 8 divisors (see below), whose sum is σ = 14837760. Its totient is φ = 13145352.

The previous prime is 13981147. The next prime is 13981193. The reversal of 13981171 is 17118931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13981171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13981111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3795 + ... + 6508.

It is an arithmetic number, because the mean of its divisors is an integer number (1854720).

Almost surely, 2^13981171 is an apocalyptic number.

13981171 is a deficient number, since it is larger than the sum of its proper divisors (856589).

13981171 is a wasteful number, since it uses less digits than its factorization.

13981171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10385.

The product of its digits is 1512, while the sum is 31.

The square root of 13981171 is about 3739.1404092385. The cubic root of 13981171 is about 240.9061289688.

The spelling of 13981171 in words is "thirteen million, nine hundred eighty-one thousand, one hundred seventy-one".