13314981 has 16 divisors (see below), whose sum is σ = 18155456. Its totient is φ = 8678016.

The previous prime is 13314979. The next prime is 13314989. The reversal of 13314981 is 18941331.

It is not a de Polignac number, because 13314981 - 2¹ = 13314979 is a prime.

It is a super-2 number, since 2×13314981² = 354577438060722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13314989) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 35511 + ... + 35883.

It is an arithmetic number, because the mean of its divisors is an integer number (1134716).

Almost surely, 2^13314981 is an apocalyptic number.

It is an amenable number.

13314981 is a deficient number, since it is larger than the sum of its proper divisors (4840475).

13314981 is a wasteful number, since it uses less digits than its factorization.

13314981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612.

The product of its digits is 2592, while the sum is 30.

The square root of 13314981 is about 3648.9698546302. The cubic root of 13314981 is about 237.0173748589.

The spelling of 13314981 in words is "thirteen million, three hundred fourteen thousand, nine hundred eighty-one".