3867131 has 2 divisors, whose sum is σ = 3867132. Its totient is φ = 3867130.

The previous prime is 3867107. The next prime is 3867133. The reversal of 3867131 is 1317683.

It is a strong prime.

It is an emirp because it is prime and its reverse (1317683) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3867131 is a prime.

It is a super-2 number, since 2×3867131² = 29909404342322, which contains 22 as substring.

Together with 3867133, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3867094 and 3867103.

It is not a weakly prime, because it can be changed into another prime (3867133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1933565 + 1933566.

It is an arithmetic number, because the mean of its divisors is an integer number (1933566).

Almost surely, 2^3867131 is an apocalyptic number.

3867131 is a deficient number, since it is larger than the sum of its proper divisors (1).

3867131 is an equidigital number, since it uses as much as digits as its factorization.

3867131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 29.

The square root of 3867131 is about 1966.5022247636. The cubic root of 3867131 is about 156.9626400347.

The spelling of 3867131 in words is "three million, eight hundred sixty-seven thousand, one hundred thirty-one".