3109223861 has 2 divisors, whose sum is σ = 3109223862. Its totient is φ = 3109223860.

The previous prime is 3109223837. The next prime is 3109223867. The reversal of 3109223861 is 1683229013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2094801361 + 1014422500 = 45769^2 + 31850^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3109223861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3109223867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1554611930 + 1554611931.

It is an arithmetic number, because the mean of its divisors is an integer number (1554611931).

Almost surely, 2^3109223861 is an apocalyptic number.

It is an amenable number.

3109223861 is a deficient number, since it is larger than the sum of its proper divisors (1).

3109223861 is an equidigital number, since it uses as much as digits as its factorization.

3109223861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 3109223861 is about 55760.4148209104. The cubic root of 3109223861 is about 1459.5444661594.

The spelling of 3109223861 in words is "three billion, one hundred nine million, two hundred twenty-three thousand, eight hundred sixty-one".