131755541 has 2 divisors, whose sum is σ = 131755542. Its totient is φ = 131755540.

The previous prime is 131755537. The next prime is 131755577. The reversal of 131755541 is 145557131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126675025 + 5080516 = 11255^2 + 2254^2 .

It is a cyclic number.

It is not a de Polignac number, because 131755541 - 2² = 131755537 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 131755498 and 131755507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131755501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65877770 + 65877771.

It is an arithmetic number, because the mean of its divisors is an integer number (65877771).

Almost surely, 2^131755541 is an apocalyptic number.

It is an amenable number.

131755541 is a deficient number, since it is larger than the sum of its proper divisors (1).

131755541 is an equidigital number, since it uses as much as digits as its factorization.

131755541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10500, while the sum is 32.

The square root of 131755541 is about 11478.4816504623. The cubic root of 131755541 is about 508.8498250427.

The spelling of 131755541 in words is "one hundred thirty-one million, seven hundred fifty-five thousand, five hundred forty-one".