1443941 has 2 divisors, whose sum is σ = 1443942. Its totient is φ = 1443940.
The previous prime is 1443913. The next prime is 1443961. The reversal of 1443941 is 1493441.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1331716 + 112225 = 1154^2 + 335^2 .
It is an emirp because it is prime and its reverse (1493441) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1443941 is a prime.
It is a super-2 number, since 2×14439412 = 4169931222962, which contains 22 as substring.
It is a Sophie Germain prime.
It is a Chen prime.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 1443941.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1443961) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721970 + 721971.
It is an arithmetic number, because the mean of its divisors is an integer number (721971).
21443941 is an apocalyptic number.
It is an amenable number.
1443941 is a deficient number, since it is larger than the sum of its proper divisors (1).
1443941 is an equidigital number, since it uses as much as digits as its factorization.
1443941 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1728, while the sum is 26.
The square root of 1443941 is about 1201.6409613524. The cubic root of 1443941 is about 113.0272469342.
The spelling of 1443941 in words is "one million, four hundred forty-three thousand, nine hundred forty-one".
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