131540133 has 8 divisors (see below), whose sum is σ = 175440096. Its totient is φ = 87666800.

The previous prime is 131540107. The next prime is 131540141. The reversal of 131540133 is 331045131.

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 131540133 - 2²⁴ = 114762917 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131540183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14278 + ... + 21608.

It is an arithmetic number, because the mean of its divisors is an integer number (21930012).

Almost surely, 2^131540133 is an apocalyptic number.

It is an amenable number.

131540133 is a deficient number, since it is larger than the sum of its proper divisors (43899963).

131540133 is an equidigital number, since it uses as much as digits as its factorization.

131540133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13315.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 131540133 is about 11469.0946896431. The cubic root of 131540133 is about 508.5723664736.

Adding to 131540133 its reverse (331045131), we get a palindrome (462585264).

The spelling of 131540133 in words is "one hundred thirty-one million, five hundred forty thousand, one hundred thirty-three".