3782161 has 2 divisors, whose sum is σ = 3782162. Its totient is φ = 3782160.

The previous prime is 3782153. The next prime is 3782167. The reversal of 3782161 is 1612873.

3782161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3779136 + 3025 = 1944^2 + 55^2 .

It is a cyclic number.

It is not a de Polignac number, because 3782161 - 2³ = 3782153 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3782167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1891080 + 1891081.

It is an arithmetic number, because the mean of its divisors is an integer number (1891081).

Almost surely, 2^3782161 is an apocalyptic number.

It is an amenable number.

3782161 is a deficient number, since it is larger than the sum of its proper divisors (1).

3782161 is an equidigital number, since it uses as much as digits as its factorization.

3782161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 28.

The square root of 3782161 is about 1944.7778793477. Note that the first 3 decimals coincide. The cubic root of 3782161 is about 155.8045025320.

The spelling of 3782161 in words is "three million, seven hundred eighty-two thousand, one hundred sixty-one".