1133541720 has 96 divisors (see below), whose sum is σ = 3690245520. Its totient is φ = 301766400.

The previous prime is 1133541701. The next prime is 1133541733. The reversal of 1133541720 is 271453311.

1133541720 is a `hidden beast` number, since 113 + 3 + 541 + 7 + 2 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 241395 + ... + 246045.

Almost surely, 2^1133541720 is an apocalyptic number.

1133541720 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 1133541720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1845122760).

1133541720 is an abundant number, since it is smaller than the sum of its proper divisors (2556703800).

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

1133541720 is a wasteful number, since it uses less digits than its factorization.

1133541720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5345 (or 5338 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 1133541720 is about 33668.1113221398. Note that the first 3 decimals coincide. The cubic root of 1133541720 is about 1042.6674989219.

The spelling of 1133541720 in words is "one billion, one hundred thirty-three million, five hundred forty-one thousand, seven hundred twenty".