131755193 has 2 divisors, whose sum is σ = 131755194. Its totient is φ = 131755192.

The previous prime is 131755189. The next prime is 131755223. The reversal of 131755193 is 391557131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67947049 + 63808144 = 8243^2 + 7988^2 .

It is a cyclic number.

It is not a de Polignac number, because 131755193 - 2² = 131755189 is a prime.

It is not a weakly prime, because it can be changed into another prime (131755103) 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 as a sum of consecutive naturals, namely, 65877596 + 65877597.

It is an arithmetic number, because the mean of its divisors is an integer number (65877597).

Almost surely, 2^131755193 is an apocalyptic number.

It is an amenable number.

131755193 is a deficient number, since it is larger than the sum of its proper divisors (1).

131755193 is an equidigital number, since it uses as much as digits as its factorization.

131755193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14175, while the sum is 35.

The square root of 131755193 is about 11478.4664916530. The cubic root of 131755193 is about 508.8493770416.

The spelling of 131755193 in words is "one hundred thirty-one million, seven hundred fifty-five thousand, one hundred ninety-three".