3133861 has 2 divisors, whose sum is σ = 3133862. Its totient is φ = 3133860.

The previous prime is 3133853. The next prime is 3133873. The reversal of 3133861 is 1683313.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3132900 + 961 = 1770^2 + 31^2 .

It is an emirp because it is prime and its reverse (1683313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3133861 - 2³ = 3133853 is a prime.

It is a super-3 number, since 3×3133861³ = 92333743590004069143, which contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3133811) 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, 1566930 + 1566931.

It is an arithmetic number, because the mean of its divisors is an integer number (1566931).

Almost surely, 2^3133861 is an apocalyptic number.

It is an amenable number.

3133861 is a deficient number, since it is larger than the sum of its proper divisors (1).

3133861 is an equidigital number, since it uses as much as digits as its factorization.

3133861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 25.

The square root of 3133861 is about 1770.2714481118. The cubic root of 3133861 is about 146.3389416867.

The spelling of 3133861 in words is "three million, one hundred thirty-three thousand, eight hundred sixty-one".