1090459 has 2 divisors, whose sum is σ = 1090460. Its totient is φ = 1090458.
The previous prime is 1090457. The next prime is 1090469. The reversal of 1090459 is 9540901.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 1090459 - 21 = 1090457 is a prime.
Together with 1090457, it forms a pair of twin primes.
1090459 is a lucky number.
It is not a weakly prime, because it can be changed into another prime (1090457) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545229 + 545230.
It is an arithmetic number, because the mean of its divisors is an integer number (545230).
21090459 is an apocalyptic number.
1090459 is a deficient number, since it is larger than the sum of its proper divisors (1).
1090459 is an equidigital number, since it uses as much as digits as its factorization.
1090459 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1620, while the sum is 28.
The square root of 1090459 is about 1044.2504488867. The cubic root of 1090459 is about 102.9286903911.
The spelling of 1090459 in words is "one million, ninety thousand, four hundred fifty-nine".
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