11504109 has 4 divisors (see below), whose sum is σ = 15338816. Its totient is φ = 7669404.

The previous prime is 11504093. The next prime is 11504137. The reversal of 11504109 is 90140511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11504109 - 2⁴ = 11504093 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 (11504159) 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, 1917349 + ... + 1917354.

It is an arithmetic number, because the mean of its divisors is an integer number (3834704).

Almost surely, 2^11504109 is an apocalyptic number.

It is an amenable number.

11504109 is a deficient number, since it is larger than the sum of its proper divisors (3834707).

11504109 is an equidigital number, since it uses as much as digits as its factorization.

11504109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3834706.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 11504109 is about 3391.7707764529. The cubic root of 11504109 is about 225.7447518981.

The spelling of 11504109 in words is "eleven million, five hundred four thousand, one hundred nine".