1133561040 has 80 divisors (see below), whose sum is σ = 3588841728. Its totient is φ = 295848448.

The previous prime is 1133561027. The next prime is 1133561059. The reversal of 1133561040 is 401653311.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1133561040.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38967 + ... + 61526.

Almost surely, 2^1133561040 is an apocalyptic number.

1133561040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1133561040 is an abundant number, since it is smaller than the sum of its proper divisors (2455280688).

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

1133561040 is a wasteful number, since it uses less digits than its factorization.

1133561040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100556 (or 100550 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1133561040 is about 33668.3982392985. The cubic root of 1133561040 is about 1042.6734226038.

The spelling of 1133561040 in words is "one billion, one hundred thirty-three million, five hundred sixty-one thousand, forty".