11748109 has 4 divisors (see below), whose sum is σ = 11909116. Its totient is φ = 11587104.

The previous prime is 11748067. The next prime is 11748119. The reversal of 11748109 is 90184711.

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 6002500 + 5745609 = 2450^2 + 2397^2 .

It is a cyclic number.

It is not a de Polignac number, because 11748109 - 2⁹ = 11747597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11748119) 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 3 ways as a sum of consecutive naturals, for example, 80394 + ... + 80539.

It is an arithmetic number, because the mean of its divisors is an integer number (2977279).

Almost surely, 2^11748109 is an apocalyptic number.

It is an amenable number.

11748109 is a deficient number, since it is larger than the sum of its proper divisors (161007).

11748109 is an equidigital number, since it uses as much as digits as its factorization.

11748109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161006.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 11748109 is about 3427.5514584029. The cubic root of 11748109 is about 227.3296006951.

The spelling of 11748109 in words is "eleven million, seven hundred forty-eight thousand, one hundred nine".