135717161 has 2 divisors, whose sum is σ = 135717162. Its totient is φ = 135717160.

The previous prime is 135717121. The next prime is 135717173. The reversal of 135717161 is 161717531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115691536 + 20025625 = 10756^2 + 4475^2 .

It is a cyclic number.

It is not a de Polignac number, because 135717161 - 2²² = 131522857 is a prime.

It is a super-3 number, since 3×135717161³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (135717121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67858580 + 67858581.

It is an arithmetic number, because the mean of its divisors is an integer number (67858581).

Almost surely, 2^135717161 is an apocalyptic number.

It is an amenable number.

135717161 is a deficient number, since it is larger than the sum of its proper divisors (1).

135717161 is an equidigital number, since it uses as much as digits as its factorization.

135717161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4410, while the sum is 32.

The square root of 135717161 is about 11649.7708561156. The cubic root of 135717161 is about 513.8995713391.

The spelling of 135717161 in words is "one hundred thirty-five million, seven hundred seventeen thousand, one hundred sixty-one".