131735161 has 2 divisors, whose sum is σ = 131735162. Its totient is φ = 131735160.

The previous prime is 131735147. The next prime is 131735167. The reversal of 131735161 is 161537131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131675625 + 59536 = 11475^2 + 244^2 .

It is a cyclic number.

It is not a de Polignac number, because 131735161 - 2¹¹ = 131733113 is a prime.

It is not a weakly prime, because it can be changed into another prime (131735167) 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, 65867580 + 65867581.

It is an arithmetic number, because the mean of its divisors is an integer number (65867581).

Almost surely, 2^131735161 is an apocalyptic number.

It is an amenable number.

131735161 is a deficient number, since it is larger than the sum of its proper divisors (1).

131735161 is an equidigital number, since it uses as much as digits as its factorization.

131735161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1890, while the sum is 28.

The square root of 131735161 is about 11477.5938680544. The cubic root of 131735161 is about 508.8235873248.

The spelling of 131735161 in words is "one hundred thirty-one million, seven hundred thirty-five thousand, one hundred sixty-one".