1128259 has 8 divisors (see below), whose sum is σ = 1243440. Its totient is φ = 1015200.

The previous prime is 1128251. The next prime is 1128287. The reversal of 1128259 is 9528211.

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 1128259 - 2³ = 1128251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1128251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 729 + ... + 1669.

It is an arithmetic number, because the mean of its divisors is an integer number (155430).

2^1128259 is an apocalyptic number.

1128259 is a deficient number, since it is larger than the sum of its proper divisors (115181).

1128259 is a wasteful number, since it uses less digits than its factorization.

1128259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061.

The product of its digits is 1440, while the sum is 28.

The square root of 1128259 is about 1062.1953680938. The cubic root of 1128259 is about 104.1045238592.

The spelling of 1128259 in words is "one million, one hundred twenty-eight thousand, two hundred fifty-nine".