1133540 has 36 divisors (see below), whose sum is σ = 2528316. Its totient is φ = 426816.

The previous prime is 1133537. The next prime is 1133551. The reversal of 1133540 is 453311.

It can be written as a sum of positive squares in 2 ways, for example, as 369664 + 763876 = 608^2 + 874^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7142 + ... + 7298.

It is an arithmetic number, because the mean of its divisors is an integer number (70231).

2^1133540 is an apocalyptic number.

1133540 is a gapful number since it is divisible by the number (10) 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 1133540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1264158).

1133540 is an abundant number, since it is smaller than the sum of its proper divisors (1394776).

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

1133540 is a wasteful number, since it uses less digits than its factorization.

1133540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 1133540 is about 1064.6783551853. The cubic root of 1133540 is about 104.2666971551.

Adding to 1133540 its reverse (453311), we get a palindrome (1586851).

The spelling of 1133540 in words is "one million, one hundred thirty-three thousand, five hundred forty".