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1128017 = 11102547

1128017 has 4 divisors (see below), whose sum is σ = 1230576. Its totient is φ = 1025460.

The previous prime is 1127993. The next prime is 1128031. The reversal of 1128017 is 7108211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1128017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1128017.

It is not an unprimeable number, because it can be changed into a prime (1128037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51263 + ... + 51284.

It is an arithmetic number, because the mean of its divisors is an integer number (307644).

21128017 is an apocalyptic number.

It is an amenable number.

1128017 is a deficient number, since it is larger than the sum of its proper divisors (102559).

1128017 is a wasteful number, since it uses less digits than its factorization.

1128017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102558.

The product of its (nonzero) digits is 112, while the sum is 20.

The square root of 1128017 is about 1062.0814469710. The cubic root of 1128017 is about 104.0970802090.

The spelling of 1128017 in words is "one million, one hundred twenty-eight thousand, seventeen".

Divisors: 1 11 102547 1128017