1140128 has 48 divisors (see below), whose sum is σ = 2540160. Its totient is φ = 499200.

The previous prime is 1140127. The next prime is 1140131. The reversal of 1140128 is 8210411.

It is not an unprimeable number, because it can be changed into a prime (1140121) 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, 14393 + ... + 14471.

It is an arithmetic number, because the mean of its divisors is an integer number (52920).

2^1140128 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 1140128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1270080).

1140128 is an abundant number, since it is smaller than the sum of its proper divisors (1400032).

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

1140128 is a wasteful number, since it uses less digits than its factorization.

1140128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1140128 is about 1067.7677650126. The cubic root of 1140128 is about 104.4683023143.

Adding to 1140128 its reverse (8210411), we get a palindrome (9350539).

The spelling of 1140128 in words is "one million, one hundred forty thousand, one hundred twenty-eight".