1128345 has 8 divisors (see below), whose sum is σ = 1805376. Its totient is φ = 601776.

The previous prime is 1128313. The next prime is 1128349. The reversal of 1128345 is 5438211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1128345 - 2⁵ = 1128313 is a prime.

1128345 is a lucky number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1128349) 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, 37597 + ... + 37626.

It is an arithmetic number, because the mean of its divisors is an integer number (225672).

2^1128345 is an apocalyptic number.

1128345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1128345 is a deficient number, since it is larger than the sum of its proper divisors (677031).

1128345 is an equidigital number, since it uses as much as digits as its factorization.

1128345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75231.

The product of its digits is 960, while the sum is 24.

The square root of 1128345 is about 1062.2358495174. The cubic root of 1128345 is about 104.1071688670.

The spelling of 1128345 in words is "one million, one hundred twenty-eight thousand, three hundred forty-five".