1168013 has 18 divisors (see below), whose sum is σ = 1501038. Its totient is φ = 905520.
The previous prime is 1168007. The next prime is 1168031. The reversal of 1168013 is 3108611.
Added to its reverse (3108611) it gives a square (4276624 = 20682).
It can be written as a sum of positive squares in only one way, i.e., 1162084 + 5929 = 1078^2 + 77^2 .
It is not a de Polignac number, because 1168013 - 214 = 1151629 is a prime.
It is an Ulam number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1168043) by changing a digit.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5831 + ... + 6027.
It is an arithmetic number, because the mean of its divisors is an integer number (83391).
21168013 is an apocalyptic number.
It is an amenable number.
1168013 is a deficient number, since it is larger than the sum of its proper divisors (333025).
1168013 is a wasteful number, since it uses less digits than its factorization.
1168013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 233 (or 215 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 20.
The square root of 1168013 is about 1080.7465012666. The cubic root of 1168013 is about 105.3131392771.
Adding to 1168013 its reverse (3108611), we get a square (4276624 = 20682).
The spelling of 1168013 in words is "one million, one hundred sixty-eight thousand, thirteen".
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