131500541 has 4 divisors (see below), whose sum is σ = 131625312. Its totient is φ = 131375772.

The previous prime is 131500519. The next prime is 131500547. The reversal of 131500541 is 145005131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131500541 - 2²² = 127306237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131500547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60791 + ... + 62916.

It is an arithmetic number, because the mean of its divisors is an integer number (32906328).

Almost surely, 2^131500541 is an apocalyptic number.

It is an amenable number.

131500541 is a deficient number, since it is larger than the sum of its proper divisors (124771).

131500541 is a wasteful number, since it uses less digits than its factorization.

131500541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124770.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 131500541 is about 11467.3685298764. The cubic root of 131500541 is about 508.5213366290.

Adding to 131500541 its reverse (145005131), we get a palindrome (276505672).

The spelling of 131500541 in words is "one hundred thirty-one million, five hundred thousand, five hundred forty-one".