1139088 has 40 divisors (see below), whose sum is σ = 3100000. Its totient is φ = 359424.

The previous prime is 1139087. The next prime is 1139123. The reversal of 1139088 is 8809311.

It is not an unprimeable number, because it can be changed into a prime (1139081) 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, 288 + ... + 1536.

It is an arithmetic number, because the mean of its divisors is an integer number (77500).

2^1139088 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 1139088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1550000).

1139088 is an abundant number, since it is smaller than the sum of its proper divisors (1960912).

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

1139088 is a wasteful number, since it uses less digits than its factorization.

1139088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279 (or 1273 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 1139088 is about 1067.2806566222. The cubic root of 1139088 is about 104.4365280790.

The spelling of 1139088 in words is "one million, one hundred thirty-nine thousand, eighty-eight".