1151328 has 48 divisors (see below), whose sum is σ = 3084480. Its totient is φ = 375936.

The previous prime is 1151327. The next prime is 1151333. The reversal of 1151328 is 8231511.

It is a Cunningham number, because it is equal to 1073²-1.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6343 + ... + 6521.

It is an arithmetic number, because the mean of its divisors is an integer number (64260).

2^1151328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1151328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1542240).

1151328 is an abundant number, since it is smaller than the sum of its proper divisors (1933152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1151328 is a wasteful number, since it uses less digits than its factorization.

1151328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259 (or 251 counting only the distinct ones).

The product of its digits is 240, while the sum is 21.

The square root of 1151328 is about 1072.9995340167. Note that the first 3 decimals coincide. The cubic root of 1151328 is about 104.8092682594.

Adding to 1151328 its reverse (8231511), we get a palindrome (9382839).

The spelling of 1151328 in words is "one million, one hundred fifty-one thousand, three hundred twenty-eight".