13503972 has 36 divisors (see below), whose sum is σ = 32586288. Its totient is φ = 4352400.

The previous prime is 13503949. The next prime is 13503977. The reversal of 13503972 is 27930531.

13503972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13503977) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10947 + ... + 12117.

Almost surely, 2^13503972 is an apocalyptic number.

13503972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13503972 is an abundant number, since it is smaller than the sum of its proper divisors (19082316).

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

13503972 is a wasteful number, since it uses less digits than its factorization.

13503972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240 (or 1207 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 13503972 is about 3674.7750951589. The cubic root of 13503972 is about 238.1335079386.

The spelling of 13503972 in words is "thirteen million, five hundred three thousand, nine hundred seventy-two".