4161851 has 2 divisors, whose sum is σ = 4161852. Its totient is φ = 4161850.

The previous prime is 4161823. The next prime is 4161853. The reversal of 4161851 is 1581614.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4161851 is a prime.

Together with 4161853, 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 4161851.

It is not a weakly prime, because it can be changed into another prime (4161853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2080925 + 2080926.

It is an arithmetic number, because the mean of its divisors is an integer number (2080926).

Almost surely, 2^4161851 is an apocalyptic number.

4161851 is a deficient number, since it is larger than the sum of its proper divisors (1).

4161851 is an equidigital number, since it uses as much as digits as its factorization.

4161851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 26.

The square root of 4161851 is about 2040.0615186803. The cubic root of 4161851 is about 160.8528805353.

The spelling of 4161851 in words is "four million, one hundred sixty-one thousand, eight hundred fifty-one".