1155328 has 18 divisors (see below), whose sum is σ = 2306654. Its totient is φ = 577536.

The previous prime is 1155317. The next prime is 1155373. The reversal of 1155328 is 8235511.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 589824 + 565504 = 768^2 + 752^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2001 + ... + 2512.

2^1155328 is an apocalyptic number.

It is an amenable number.

1155328 is a deficient number, since it is larger than the sum of its proper divisors (1151326).

1155328 is an frugal number, since it uses more digits than its factorization.

1155328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4529 (or 4515 counting only the distinct ones).

The product of its digits is 1200, while the sum is 25.

The square root of 1155328 is about 1074.8618515884. The cubic root of 1155328 is about 104.9305057917.

The spelling of 1155328 in words is "one million, one hundred fifty-five thousand, three hundred twenty-eight".