1139528 has 16 divisors (see below), whose sum is σ = 2301180. Its totient is φ = 525888.

The previous prime is 1139521. The next prime is 1139531. The reversal of 1139528 is 8259311.

It can be written as a sum of positive squares in 2 ways, for example, as 1119364 + 20164 = 1058^2 + 142^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1139528.

It is not an unprimeable number, because it can be changed into a prime (1139521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5375 + ... + 5582.

2^1139528 is an apocalyptic number.

It is an amenable number.

1139528 is an abundant number, since it is smaller than the sum of its proper divisors (1161652).

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

1139528 is a wasteful number, since it uses less digits than its factorization.

1139528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10976 (or 10972 counting only the distinct ones).

The product of its digits is 2160, while the sum is 29.

The square root of 1139528 is about 1067.4867680679. The cubic root of 1139528 is about 104.4499733840.

The spelling of 1139528 in words is "one million, one hundred thirty-nine thousand, five hundred twenty-eight".