1209241 has 8 divisors (see below), whose sum is σ = 1327968. Its totient is φ = 1092000.
The previous prime is 1209239. The next prime is 1209251. The reversal of 1209241 is 1429021.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 1209241 - 21 = 1209239 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1209251) 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, 2061 + ... + 2581.
It is an arithmetic number, because the mean of its divisors is an integer number (165996).
21209241 is an apocalyptic number.
1209241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
1209241 is a deficient number, since it is larger than the sum of its proper divisors (118727).
1209241 is a wasteful number, since it uses less digits than its factorization.
1209241 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 743.
The product of its (nonzero) digits is 144, while the sum is 19.
The square root of 1209241 is about 1099.6549458808. The cubic root of 1209241 is about 106.5379382423.
The spelling of 1209241 in words is "one million, two hundred nine thousand, two hundred forty-one".
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