3105220109 has 2 divisors, whose sum is σ = 3105220110. Its totient is φ = 3105220108.

The previous prime is 3105220073. The next prime is 3105220117. The reversal of 3105220109 is 9010225013.

3105220109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1936264009 + 1168956100 = 44003^2 + 34190^2 .

It is a cyclic number.

It is not a de Polignac number, because 3105220109 - 2⁸ = 3105219853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3105220009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1552610054 + 1552610055.

It is an arithmetic number, because the mean of its divisors is an integer number (1552610055).

Almost surely, 2^3105220109 is an apocalyptic number.

It is an amenable number.

3105220109 is a deficient number, since it is larger than the sum of its proper divisors (1).

3105220109 is an equidigital number, since it uses as much as digits as its factorization.

3105220109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 3105220109 is about 55724.5018730540. The cubic root of 3105220109 is about 1458.9177112277.

The spelling of 3105220109 in words is "three billion, one hundred five million, two hundred twenty thousand, one hundred nine".