20035109 has 2 divisors, whose sum is σ = 20035110. Its totient is φ = 20035108.

The previous prime is 20035051. The next prime is 20035117. The reversal of 20035109 is 90153002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17850625 + 2184484 = 4225^2 + 1478^2 .

It is a cyclic number.

It is not a de Polignac number, because 20035109 - 2²⁰ = 18986533 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20035159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10017554 + 10017555.

It is an arithmetic number, because the mean of its divisors is an integer number (10017555).

Almost surely, 2^20035109 is an apocalyptic number.

It is an amenable number.

20035109 is a deficient number, since it is larger than the sum of its proper divisors (1).

20035109 is an equidigital number, since it uses as much as digits as its factorization.

20035109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 20035109 is about 4476.0595393717. The cubic root of 20035109 is about 271.6005029551.

The spelling of 20035109 in words is "twenty million, thirty-five thousand, one hundred nine".