3133931 has 2 divisors, whose sum is σ = 3133932. Its totient is φ = 3133930.

The previous prime is 3133927. The next prime is 3133939. The reversal of 3133931 is 1393313.

It is a weak prime.

It is an emirp because it is prime and its reverse (1393313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3133931 - 2² = 3133927 is a prime.

It is a super-2 number, since 2×3133931² = 19643047025522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3133897 and 3133906.

It is not a weakly prime, because it can be changed into another prime (3133939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1566965 + 1566966.

It is an arithmetic number, because the mean of its divisors is an integer number (1566966).

Almost surely, 2^3133931 is an apocalyptic number.

3133931 is a deficient number, since it is larger than the sum of its proper divisors (1).

3133931 is an equidigital number, since it uses as much as digits as its factorization.

3133931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 729, while the sum is 23.

The square root of 3133931 is about 1770.2912189807. The cubic root of 3133931 is about 146.3400312531.

The spelling of 3133931 in words is "three million, one hundred thirty-three thousand, nine hundred thirty-one".