1128245 has 16 divisors (see below), whose sum is σ = 1451520. Its totient is φ = 840000.

The previous prime is 1128233. The next prime is 1128247. The reversal of 1128245 is 5428211.

It is not a de Polignac number, because 1128245 - 2⁶ = 1128181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1128245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128247) 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 15 ways as a sum of consecutive naturals, for example, 4370 + ... + 4620.

It is an arithmetic number, because the mean of its divisors is an integer number (90720).

2^1128245 is an apocalyptic number.

It is an amenable number.

1128245 is a deficient number, since it is larger than the sum of its proper divisors (323275).

1128245 is a wasteful number, since it uses less digits than its factorization.

1128245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316.

The product of its digits is 640, while the sum is 23.

The square root of 1128245 is about 1062.1887779486. The cubic root of 1128245 is about 104.1040932638.

The spelling of 1128245 in words is "one million, one hundred twenty-eight thousand, two hundred forty-five".