1163128 has 8 divisors (see below), whose sum is σ = 2180880. Its totient is φ = 581560.

The previous prime is 1163119. The next prime is 1163131. The reversal of 1163128 is 8213611.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1163099 and 1163108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72688 + ... + 72703.

It is an arithmetic number, because the mean of its divisors is an integer number (272610).

2^1163128 is an apocalyptic number.

It is an amenable number.

1163128 is a deficient number, since it is larger than the sum of its proper divisors (1017752).

1163128 is a wasteful number, since it uses less digits than its factorization.

1163128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145397 (or 145393 counting only the distinct ones).

The product of its digits is 288, while the sum is 22.

The square root of 1163128 is about 1078.4841213481. The cubic root of 1163128 is about 105.1661164955.

Adding to 1163128 its reverse (8213611), we get a palindrome (9376739).

The spelling of 1163128 in words is "one million, one hundred sixty-three thousand, one hundred twenty-eight".