13513872 has 20 divisors (see below), whose sum is σ = 34910960. Its totient is φ = 4504608.

The previous prime is 13513859. The next prime is 13513873. The reversal of 13513872 is 27831531.

It is not an unprimeable number, because it can be changed into a prime (13513873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140722 + ... + 140817.

It is an arithmetic number, because the mean of its divisors is an integer number (1745548).

Almost surely, 2^13513872 is an apocalyptic number.

13513872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13513872 is an abundant number, since it is smaller than the sum of its proper divisors (21397088).

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

13513872 is a wasteful number, since it uses less digits than its factorization.

13513872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281550 (or 281544 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 13513872 is about 3676.1218695794. The cubic root of 13513872 is about 238.1916870148.

The spelling of 13513872 in words is "thirteen million, five hundred thirteen thousand, eight hundred seventy-two".