3865106149 has 2 divisors, whose sum is σ = 3865106150. Its totient is φ = 3865106148.

The previous prime is 3865106131. The next prime is 3865106153. The reversal of 3865106149 is 9416015683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2339656900 + 1525449249 = 48370^2 + 39057^2 .

It is a cyclic number.

It is not a de Polignac number, because 3865106149 - 2¹⁷ = 3864975077 is a prime.

It is a super-2 number, since 2×3865106149² = 29878091086075220402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3865106159) 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, 1932553074 + 1932553075.

It is an arithmetic number, because the mean of its divisors is an integer number (1932553075).

Almost surely, 2^3865106149 is an apocalyptic number.

It is an amenable number.

3865106149 is a deficient number, since it is larger than the sum of its proper divisors (1).

3865106149 is an equidigital number, since it uses as much as digits as its factorization.

3865106149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 3865106149 is about 62169.9778751770. The cubic root of 3865106149 is about 1569.3523975211.

The spelling of 3865106149 in words is "three billion, eight hundred sixty-five million, one hundred six thousand, one hundred forty-nine".