1159128 has 48 divisors (see below), whose sum is σ = 3327480. Its totient is φ = 363264.

The previous prime is 1159127. The next prime is 1159139. The reversal of 1159128 is 8219511.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1159127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 751 + ... + 1697.

2^1159128 is an apocalyptic number.

1159128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1159128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1663740).

1159128 is an abundant number, since it is smaller than the sum of its proper divisors (2168352).

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

1159128 is a wasteful number, since it uses less digits than its factorization.

1159128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976 (or 969 counting only the distinct ones).

The product of its digits is 720, while the sum is 27.

The square root of 1159128 is about 1076.6280694836. The cubic root of 1159128 is about 105.0454225245.

The spelling of 1159128 in words is "one million, one hundred fifty-nine thousand, one hundred twenty-eight".