11900109 has 8 divisors (see below), whose sum is σ = 17087392. Its totient is φ = 7323120.

The previous prime is 11900107. The next prime is 11900149. The reversal of 11900109 is 90100911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11900109 - 2¹ = 11900107 is a prime.

It is a super-2 number, since 2×11900109² = 283225188423762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11900107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152527 + ... + 152604.

It is an arithmetic number, because the mean of its divisors is an integer number (2135924).

Almost surely, 2^11900109 is an apocalyptic number.

It is an amenable number.

11900109 is a deficient number, since it is larger than the sum of its proper divisors (5187283).

11900109 is a wasteful number, since it uses less digits than its factorization.

11900109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305147.

The product of its (nonzero) digits is 81, while the sum is 21.

The square root of 11900109 is about 3449.6534608566. The cubic root of 11900109 is about 228.3058184592.

The spelling of 11900109 in words is "eleven million, nine hundred thousand, one hundred nine".