1128529 has 8 divisors (see below), whose sum is σ = 1166400. Its totient is φ = 1091376.

The previous prime is 1128527. The next prime is 1128539. The reversal of 1128529 is 9258211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1128529 - 2¹ = 1128527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1128497 and 1128506.

It is not an unprimeable number, because it can be changed into a prime (1128521) 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, 5572 + ... + 5770.

It is an arithmetic number, because the mean of its divisors is an integer number (145800).

2^1128529 is an apocalyptic number.

It is an amenable number.

1128529 is a deficient number, since it is larger than the sum of its proper divisors (37871).

1128529 is a wasteful number, since it uses less digits than its factorization.

1128529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359.

The product of its digits is 1440, while the sum is 28.

The square root of 1128529 is about 1062.3224557544. The cubic root of 1128529 is about 104.1128275021.

Adding to 1128529 its product of digits (1440), we get a square (1129969 = 1063²).

The spelling of 1128529 in words is "one million, one hundred twenty-eight thousand, five hundred twenty-nine".