131423541 has 16 divisors (see below), whose sum is σ = 184913280. Its totient is φ = 82860800.

The previous prime is 131423483. The next prime is 131423599. The reversal of 131423541 is 145324131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (131423483) and next prime (131423599).

It is a cyclic number.

It is not a de Polignac number, because 131423541 - 2¹⁰ = 131422517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131423641) 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 15 ways as a sum of consecutive naturals, for example, 4560 + ... + 16841.

It is an arithmetic number, because the mean of its divisors is an integer number (11557080).

Almost surely, 2^131423541 is an apocalyptic number.

It is an amenable number.

131423541 is a deficient number, since it is larger than the sum of its proper divisors (53489739).

131423541 is a wasteful number, since it uses less digits than its factorization.

131423541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21516.

The product of its digits is 1440, while the sum is 24.

The square root of 131423541 is about 11464.0106856196. The cubic root of 131423541 is about 508.4220625431.

Adding to 131423541 its reverse (145324131), we get a palindrome (276747672).

The spelling of 131423541 in words is "one hundred thirty-one million, four hundred twenty-three thousand, five hundred forty-one".