3865106131 has 2 divisors, whose sum is σ = 3865106132. Its totient is φ = 3865106130.

The previous prime is 3865106087. The next prime is 3865106149. The reversal of 3865106131 is 1316015683.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3865106131 - 2¹¹ = 3865104083 is a prime.

It is a super-2 number, since 2×3865106131² = 29878090807787578322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3865106171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1932553065 + 1932553066.

It is an arithmetic number, because the mean of its divisors is an integer number (1932553066).

Almost surely, 2^3865106131 is an apocalyptic number.

3865106131 is a deficient number, since it is larger than the sum of its proper divisors (1).

3865106131 is an equidigital number, since it uses as much as digits as its factorization.

3865106131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 3865106131 is about 62169.9777304126. The cubic root of 3865106131 is about 1569.3523950850.

The spelling of 3865106131 in words is "three billion, eight hundred sixty-five million, one hundred six thousand, one hundred thirty-one".