3165971 has 2 divisors, whose sum is σ = 3165972. Its totient is φ = 3165970.

The previous prime is 3165947. The next prime is 3165991. The reversal of 3165971 is 1795613.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3165971 - 2⁶ = 3165907 is a prime.

It is not a weakly prime, because it can be changed into another prime (3165941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1582985 + 1582986.

It is an arithmetic number, because the mean of its divisors is an integer number (1582986).

Almost surely, 2^3165971 is an apocalyptic number.

3165971 is a deficient number, since it is larger than the sum of its proper divisors (1).

3165971 is an equidigital number, since it uses as much as digits as its factorization.

3165971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5670, while the sum is 32.

The square root of 3165971 is about 1779.3175658100. The cubic root of 3165971 is about 146.8370477465.

The spelling of 3165971 in words is "three million, one hundred sixty-five thousand, nine hundred seventy-one".