3161131 has 2 divisors, whose sum is σ = 3161132. Its totient is φ = 3161130.

The previous prime is 3161129. The next prime is 3161149. The reversal of 3161131 is 1311613.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3161131 - 2¹ = 3161129 is a prime.

It is a super-2 number, since 2×3161131² = 19985498398322, which contains 22 as substring.

Together with 3161129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3111131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1580565 + 1580566.

It is an arithmetic number, because the mean of its divisors is an integer number (1580566).

Almost surely, 2^3161131 is an apocalyptic number.

3161131 is a deficient number, since it is larger than the sum of its proper divisors (1).

3161131 is an equidigital number, since it uses as much as digits as its factorization.

3161131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54, while the sum is 16.

The square root of 3161131 is about 1777.9569736076. The cubic root of 3161131 is about 146.7621835340.

Adding to 3161131 its reverse (1311613), we get a palindrome (4472744).

The spelling of 3161131 in words is "three million, one hundred sixty-one thousand, one hundred thirty-one".