13981316 has 12 divisors (see below), whose sum is σ = 24548160. Its totient is φ = 6967560.

The previous prime is 13981313. The next prime is 13981333. The reversal of 13981316 is 61318931.

It is not an unprimeable number, because it can be changed into a prime (13981313) 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, 4376 + ... + 6863.

It is an arithmetic number, because the mean of its divisors is an integer number (2045680).

Almost surely, 2^13981316 is an apocalyptic number.

It is an amenable number.

13981316 is a deficient number, since it is larger than the sum of its proper divisors (10566844).

13981316 is a wasteful number, since it uses less digits than its factorization.

13981316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11554 (or 11552 counting only the distinct ones).

The product of its digits is 3888, while the sum is 32.

The square root of 13981316 is about 3739.1597986714. The cubic root of 13981316 is about 240.9069617858.

The spelling of 13981316 in words is "thirteen million, nine hundred eighty-one thousand, three hundred sixteen".