13981272 has 32 divisors (see below), whose sum is σ = 35059200. Its totient is φ = 4646304.

The previous prime is 13981243. The next prime is 13981273. The reversal of 13981272 is 27218931.

13981272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13981273) 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, 9873 + ... + 11199.

It is an arithmetic number, because the mean of its divisors is an integer number (1095600).

Almost surely, 2^13981272 is an apocalyptic number.

13981272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13981272 is an abundant number, since it is smaller than the sum of its proper divisors (21077928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13981272 is a wasteful number, since it uses less digits than its factorization.

13981272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1775 (or 1771 counting only the distinct ones).

The product of its digits is 6048, while the sum is 33.

The square root of 13981272 is about 3739.1539149920. The cubic root of 13981272 is about 240.9067090695.

The spelling of 13981272 in words is "thirteen million, nine hundred eighty-one thousand, two hundred seventy-two".