131758541 has 2 divisors, whose sum is σ = 131758542. Its totient is φ = 131758540.

The previous prime is 131758507. The next prime is 131758547. The reversal of 131758541 is 145857131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120340900 + 11417641 = 10970^2 + 3379^2 .

It is a cyclic number.

It is not a de Polignac number, because 131758541 - 2¹⁰ = 131757517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131758547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65879270 + 65879271.

It is an arithmetic number, because the mean of its divisors is an integer number (65879271).

Almost surely, 2^131758541 is an apocalyptic number.

It is an amenable number.

131758541 is a deficient number, since it is larger than the sum of its proper divisors (1).

131758541 is an equidigital number, since it uses as much as digits as its factorization.

131758541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16800, while the sum is 35.

The square root of 131758541 is about 11478.6123290231. The cubic root of 131758541 is about 508.8536870888.

The spelling of 131758541 in words is "one hundred thirty-one million, seven hundred fifty-eight thousand, five hundred forty-one".