11242005 has 8 divisors (see below), whose sum is σ = 17987232. Its totient is φ = 5995728.
The previous prime is 11242003. The next prime is 11242013. The reversal of 11242005 is 50024211.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 11242005 - 21 = 11242003 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 749467 = 11242005 / (1 + 1 + 2 + 4 + 2 + 0 + 0 + 5).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (11242001) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374719 + ... + 374748.
It is an arithmetic number, because the mean of its divisors is an integer number (2248404).
Almost surely, 211242005 is an apocalyptic number.
11242005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
11242005 is a deficient number, since it is larger than the sum of its proper divisors (6745227).
11242005 is an equidigital number, since it uses as much as digits as its factorization.
11242005 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 749475.
The product of its (nonzero) digits is 80, while the sum is 15.
The square root of 11242005 is about 3352.9099301950. The cubic root of 11242005 is about 224.0171449993.
Adding to 11242005 its reverse (50024211), we get a palindrome (61266216).
The spelling of 11242005 in words is "eleven million, two hundred forty-two thousand, five".
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