1128535 has 16 divisors (see below), whose sum is σ = 1441440. Its totient is φ = 846720.

The previous prime is 1128527. The next prime is 1128539. The reversal of 1128535 is 5358211.

It is a happy number.

It is not a de Polignac number, because 1128535 - 2³ = 1128527 is a prime.

It is an Ulam number.

1128535 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6145 + ... + 6325.

It is an arithmetic number, because the mean of its divisors is an integer number (90090).

2^1128535 is an apocalyptic number.

1128535 is a deficient number, since it is larger than the sum of its proper divisors (312905).

1128535 is a wasteful number, since it uses less digits than its factorization.

1128535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258.

The product of its digits is 1200, while the sum is 25.

The square root of 1128535 is about 1062.3252797519. The cubic root of 1128535 is about 104.1130120125.

The spelling of 1128535 in words is "one million, one hundred twenty-eight thousand, five hundred thirty-five".