1133520 has 40 divisors (see below), whose sum is σ = 3514656. Its totient is φ = 302208.

The previous prime is 1133519. The next prime is 1133533. The reversal of 1133520 is 253311.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×1133520³ = 4369269333210624000, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1133520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2122 + ... + 2601.

2^1133520 is an apocalyptic number.

1133520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1133520 is an abundant number, since it is smaller than the sum of its proper divisors (2381136).

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

1133520 is a wasteful number, since it uses less digits than its factorization.

1133520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4739 (or 4733 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 1133520 is about 1064.6689626358. The cubic root of 1133520 is about 104.2660839299.

Adding to 1133520 its reverse (253311), we get a palindrome (1386831).

It can be divided in two parts, 1133 and 520, that added together give a triangular number (1653 = T₅₇).

The spelling of 1133520 in words is "one million, one hundred thirty-three thousand, five hundred twenty".