131541 has 8 divisors (see below), whose sum is σ = 177120. Its totient is φ = 86832.

The previous prime is 131519. The next prime is 131543. The reversal of 131541 is 145131.

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

It is not a de Polignac number, because 131541 - 2⁶ = 131477 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 131541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355 + ... + 623.

It is an arithmetic number, because the mean of its divisors is an integer number (22140).

2¹³¹⁵⁴¹ is an apocalyptic number.

It is an amenable number.

131541 is a deficient number, since it is larger than the sum of its proper divisors (45579).

131541 is a wasteful number, since it uses less digits than its factorization.

131541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435.

The product of its digits is 60, while the sum is 15.

The square root of 131541 is about 362.6858144455. The cubic root of 131541 is about 50.8573483829.

Adding to 131541 its reverse (145131), we get a palindrome (276672).

The spelling of 131541 in words is "one hundred thirty-one thousand, five hundred forty-one".