4170191 has 2 divisors, whose sum is σ = 4170192. Its totient is φ = 4170190.

The previous prime is 4170121. The next prime is 4170193. The reversal of 4170191 is 1910714.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4170191 is a prime.

Together with 4170193, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4170193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2085095 + 2085096.

It is an arithmetic number, because the mean of its divisors is an integer number (2085096).

Almost surely, 2^4170191 is an apocalyptic number.

4170191 is a deficient number, since it is larger than the sum of its proper divisors (1).

4170191 is an equidigital number, since it uses as much as digits as its factorization.

4170191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 4170191 is about 2042.1045516819. The cubic root of 4170191 is about 160.9602540675.

The spelling of 4170191 in words is "four million, one hundred seventy thousand, one hundred ninety-one".