1118723 has 2 divisors, whose sum is σ = 1118724. Its totient is φ = 1118722.
The previous prime is 1118717. The next prime is 1118737. The reversal of 1118723 is 3278111.
It is a happy number.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 1118723 - 26 = 1118659 is a prime.
It is a Sophie Germain prime.
It is not a weakly prime, because it can be changed into another prime (1118713) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559361 + 559362.
It is an arithmetic number, because the mean of its divisors is an integer number (559362).
21118723 is an apocalyptic number.
1118723 is a deficient number, since it is larger than the sum of its proper divisors (1).
1118723 is an equidigital number, since it uses as much as digits as its factorization.
1118723 is an evil number, because the sum of its binary digits is even.
The product of its digits is 336, while the sum is 23.
The square root of 1118723 is about 1057.6970265629. The cubic root of 1118723 is about 103.8103978902.
The spelling of 1118723 in words is "one million, one hundred eighteen thousand, seven hundred twenty-three".
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