3104186861 has 2 divisors, whose sum is σ = 3104186862. Its totient is φ = 3104186860.

The previous prime is 3104186843. The next prime is 3104186909. The reversal of 3104186861 is 1686814013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2835030025 + 269156836 = 53245^2 + 16406^2 .

It is a cyclic number.

It is not a de Polignac number, because 3104186861 - 2²⁶ = 3037077997 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3104186821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1552093430 + 1552093431.

It is an arithmetic number, because the mean of its divisors is an integer number (1552093431).

Almost surely, 2^3104186861 is an apocalyptic number.

It is an amenable number.

3104186861 is a deficient number, since it is larger than the sum of its proper divisors (1).

3104186861 is an equidigital number, since it uses as much as digits as its factorization.

3104186861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 3104186861 is about 55715.2300632421. The cubic root of 3104186861 is about 1458.7558771783.

The spelling of 3104186861 in words is "three billion, one hundred four million, one hundred eighty-six thousand, eight hundred sixty-one".