13471109 has 4 divisors (see below), whose sum is σ = 13935660. Its totient is φ = 13006560.

The previous prime is 13471103. The next prime is 13471121. The reversal of 13471109 is 90117431.

13471109 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 7236100 + 6235009 = 2690^2 + 2497^2 .

It is a cyclic number.

It is not a de Polignac number, because 13471109 - 2²⁰ = 12422533 is a prime.

It is a super-3 number, since 3×13471109³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13471103) 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, 232232 + ... + 232289.

It is an arithmetic number, because the mean of its divisors is an integer number (3483915).

Almost surely, 2^13471109 is an apocalyptic number.

It is an amenable number.

13471109 is a deficient number, since it is larger than the sum of its proper divisors (464551).

13471109 is an equidigital number, since it uses as much as digits as its factorization.

13471109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464550.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 13471109 is about 3670.3009413398. The cubic root of 13471109 is about 237.9401786897.

The spelling of 13471109 in words is "thirteen million, four hundred seventy-one thousand, one hundred nine".