1004161 has 2 divisors, whose sum is σ = 1004162. Its totient is φ = 1004160.

The previous prime is 1004141. The next prime is 1004167. The reversal of 1004161 is 1614001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 690561 + 313600 = 831^2 + 560^2 .

It is an emirp because it is prime and its reverse (1614001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1004161 - 2⁷ = 1004033 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1004167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502080 + 502081.

It is an arithmetic number, because the mean of its divisors is an integer number (502081).

2^1004161 is an apocalyptic number.

It is an amenable number.

1004161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1004161 is an equidigital number, since it uses as much as digits as its factorization.

1004161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1004161 is about 1002.0783402509. The cubic root of 1004161 is about 100.1385080666.

Adding to 1004161 its reverse (1614001), we get a palindrome (2618162).

The spelling of 1004161 in words is "one million, four thousand, one hundred sixty-one".