13103873 has 4 divisors (see below), whose sum is σ = 13150788. Its totient is φ = 13056960.

The previous prime is 13103869. The next prime is 13103891. The reversal of 13103873 is 37830131.

13103873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6012304 + 7091569 = 2452^2 + 2663^2 .

It is a cyclic number.

It is not a de Polignac number, because 13103873 - 2² = 13103869 is a prime.

It is a super-2 number, since 2×13103873² = 343422975200258, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13103803) 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, 23036 + ... + 23597.

It is an arithmetic number, because the mean of its divisors is an integer number (3287697).

Almost surely, 2^13103873 is an apocalyptic number.

It is an amenable number.

13103873 is a deficient number, since it is larger than the sum of its proper divisors (46915).

13103873 is an equidigital number, since it uses as much as digits as its factorization.

13103873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46914.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 13103873 is about 3619.9272092129. The cubic root of 13103873 is about 235.7580650504.

The spelling of 13103873 in words is "thirteen million, one hundred three thousand, eight hundred seventy-three".