1443161 has 2 divisors, whose sum is σ = 1443162. Its totient is φ = 1443160.

The previous prime is 1443157. The next prime is 1443193. The reversal of 1443161 is 1613441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1394761 + 48400 = 1181^2 + 220^2 .

It is an emirp because it is prime and its reverse (1613441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1443161 - 2² = 1443157 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1443131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721580 + 721581.

It is an arithmetic number, because the mean of its divisors is an integer number (721581).

2^1443161 is an apocalyptic number.

It is an amenable number.

1443161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1443161 is an equidigital number, since it uses as much as digits as its factorization.

1443161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 20.

The square root of 1443161 is about 1201.3163613304. The cubic root of 1443161 is about 113.0068912705.

The spelling of 1443161 in words is "one million, four hundred forty-three thousand, one hundred sixty-one".