13746109 has 4 divisors (see below), whose sum is σ = 14803516. Its totient is φ = 12688704.

The previous prime is 13746107. The next prime is 13746151. The reversal of 13746109 is 90164731.

It is a happy number.

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 7546009 + 6200100 = 2747^2 + 2490^2 .

It is a cyclic number.

It is not a de Polignac number, because 13746109 - 2¹ = 13746107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13746107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528684 + ... + 528709.

It is an arithmetic number, because the mean of its divisors is an integer number (3700879).

Almost surely, 2^13746109 is an apocalyptic number.

It is an amenable number.

13746109 is a deficient number, since it is larger than the sum of its proper divisors (1057407).

13746109 is a wasteful number, since it uses less digits than its factorization.

13746109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057406.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 13746109 is about 3707.5745440921. The cubic root of 13746109 is about 239.5483926428.

The spelling of 13746109 in words is "thirteen million, seven hundred forty-six thousand, one hundred nine".