11109939 has 4 divisors (see below), whose sum is σ = 14813256. Its totient is φ = 7406624.

The previous prime is 11109919. The next prime is 11109941. The reversal of 11109939 is 93990111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11109939 - 2¹¹ = 11107891 is a prime.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (11109919) 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, 1851654 + ... + 1851659.

It is an arithmetic number, because the mean of its divisors is an integer number (3703314).

Almost surely, 2^11109939 is an apocalyptic number.

11109939 is a deficient number, since it is larger than the sum of its proper divisors (3703317).

11109939 is an equidigital number, since it uses as much as digits as its factorization.

11109939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3703316.

The product of its (nonzero) digits is 2187, while the sum is 33.

The square root of 11109939 is about 3333.1575120297. The cubic root of 11109939 is about 223.1364699201.

The spelling of 11109939 in words is "eleven million, one hundred nine thousand, nine hundred thirty-nine".