1814013 has 6 divisors (see below), whose sum is σ = 2620254. Its totient is φ = 1209336.
The previous prime is 1814011. The next prime is 1814023. The reversal of 1814013 is 3104181.
It can be written as a sum of positive squares in only one way, i.e., 1734489 + 79524 = 1317^2 + 282^2 .
It is not a de Polignac number, because 1814013 - 21 = 1814011 is a prime.
1814013 is a lucky number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1814011) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 100770 + ... + 100787.
It is an arithmetic number, because the mean of its divisors is an integer number (436709).
21814013 is an apocalyptic number.
It is an amenable number.
1814013 is a deficient number, since it is larger than the sum of its proper divisors (806241).
1814013 is a wasteful number, since it uses less digits than its factorization.
1814013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 201563 (or 201560 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 18.
The square root of 1814013 is about 1346.8529986602. The cubic root of 1814013 is about 121.9588905656.
Adding to 1814013 its reverse (3104181), we get a palindrome (4918194).
The spelling of 1814013 in words is "one million, eight hundred fourteen thousand, thirteen".
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