3171941 has 2 divisors, whose sum is σ = 3171942. Its totient is φ = 3171940.

The previous prime is 3171913. The next prime is 3171943. The reversal of 3171941 is 1491713.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3150625 + 21316 = 1775^2 + 146^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3171941 is a prime.

It is a super-2 number, since 2×3171941² = 20122419414962, which contains 22 as substring.

Together with 3171943, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3171941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3171943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1585970 + 1585971.

It is an arithmetic number, because the mean of its divisors is an integer number (1585971).

Almost surely, 2^3171941 is an apocalyptic number.

It is an amenable number.

3171941 is a deficient number, since it is larger than the sum of its proper divisors (1).

3171941 is an equidigital number, since it uses as much as digits as its factorization.

3171941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756, while the sum is 26.

The square root of 3171941 is about 1780.9943851680. The cubic root of 3171941 is about 146.9292855619.

The spelling of 3171941 in words is "three million, one hundred seventy-one thousand, nine hundred forty-one".