11940109 has 2 divisors, whose sum is σ = 11940110. Its totient is φ = 11940108.

The previous prime is 11940101. The next prime is 11940121. The reversal of 11940109 is 90104911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11923209 + 16900 = 3453^2 + 130^2 .

It is a cyclic number.

It is not a de Polignac number, because 11940109 - 2³ = 11940101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11940101) 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 as a sum of consecutive naturals, namely, 5970054 + 5970055.

It is an arithmetic number, because the mean of its divisors is an integer number (5970055).

Almost surely, 2^11940109 is an apocalyptic number.

It is an amenable number.

11940109 is a deficient number, since it is larger than the sum of its proper divisors (1).

11940109 is an equidigital number, since it uses as much as digits as its factorization.

11940109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 11940109 is about 3455.4462808731. The cubic root of 11940109 is about 228.5613348779.

The spelling of 11940109 in words is "eleven million, nine hundred forty thousand, one hundred nine".