1826161 has 2 divisors, whose sum is σ = 1826162. Its totient is φ = 1826160.

The previous prime is 1826141. The next prime is 1826171. The reversal of 1826161 is 1616281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1690000 + 136161 = 1300^2 + 369^2 .

It is an emirp because it is prime and its reverse (1616281) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1826161 - 2⁵ = 1826129 is a prime.

It is not a weakly prime, because it can be changed into another prime (1826141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 913080 + 913081.

It is an arithmetic number, because the mean of its divisors is an integer number (913081).

2^1826161 is an apocalyptic number.

It is an amenable number.

1826161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1826161 is an equidigital number, since it uses as much as digits as its factorization.

1826161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 25.

The square root of 1826161 is about 1351.3552456701. The cubic root of 1826161 is about 122.2305280245.

The spelling of 1826161 in words is "one million, eight hundred twenty-six thousand, one hundred sixty-one".