1131540133 has 8 divisors (see below), whose sum is σ = 1138285568. Its totient is φ = 1124810064.

The previous prime is 1131540127. The next prime is 1131540169. The reversal of 1131540133 is 3310451311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1131540133 - 2¹⁷ = 1131409061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131540103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165460 + ... + 172162.

It is an arithmetic number, because the mean of its divisors is an integer number (142285696).

Almost surely, 2^1131540133 is an apocalyptic number.

It is an amenable number.

1131540133 is a deficient number, since it is larger than the sum of its proper divisors (6745435).

1131540133 is an equidigital number, since it uses as much as digits as its factorization.

1131540133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7683.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1131540133 is about 33638.3729243850. The cubic root of 1131540133 is about 1042.0534296821.

Adding to 1131540133 its reverse (3310451311), we get a palindrome (4441991444).

The spelling of 1131540133 in words is "one billion, one hundred thirty-one million, five hundred forty thousand, one hundred thirty-three".