1842161 has 2 divisors, whose sum is σ = 1842162. Its totient is φ = 1842160.

The previous prime is 1842151. The next prime is 1842173. The reversal of 1842161 is 1612481.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1739761 + 102400 = 1319^2 + 320^2 .

It is a cyclic number.

It is not a de Polignac number, because 1842161 - 2⁶ = 1842097 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1842101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 921080 + 921081.

It is an arithmetic number, because the mean of its divisors is an integer number (921081).

2^1842161 is an apocalyptic number.

It is an amenable number.

1842161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1842161 is an equidigital number, since it uses as much as digits as its factorization.

1842161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384, while the sum is 23.

The square root of 1842161 is about 1357.2623180506. The cubic root of 1842161 is about 122.5864667886.

The spelling of 1842161 in words is "one million, eight hundred forty-two thousand, one hundred sixty-one".