13431873 has 16 divisors (see below), whose sum is σ = 22042496. Its totient is φ = 7084800.

The previous prime is 13431871. The next prime is 13431911. The reversal of 13431873 is 37813431.

13431873 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13431873 - 2¹ = 13431871 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 13431873.

It is not an unprimeable number, because it can be changed into a prime (13431871) 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 15 ways as a sum of consecutive naturals, for example, 24328 + ... + 24873.

It is an arithmetic number, because the mean of its divisors is an integer number (1377656).

Almost surely, 2^13431873 is an apocalyptic number.

13431873 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13431873 is a deficient number, since it is larger than the sum of its proper divisors (8610623).

13431873 is a wasteful number, since it uses less digits than its factorization.

13431873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49224.

The product of its digits is 6048, while the sum is 30.

The square root of 13431873 is about 3664.9519778573. The cubic root of 13431873 is about 237.7089455771.

The spelling of 13431873 in words is "thirteen million, four hundred thirty-one thousand, eight hundred seventy-three".