135620117 has 2 divisors, whose sum is σ = 135620118. Its totient is φ = 135620116.

The previous prime is 135620113. The next prime is 135620171. The reversal of 135620117 is 711026531.

Together with next prime (135620171) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130279396 + 5340721 = 11414^2 + 2311^2 .

It is a cyclic number.

It is not a de Polignac number, because 135620117 - 2² = 135620113 is a prime.

It is a super-2 number, since 2×135620117² = 36785632270187378, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135620113) 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, 67810058 + 67810059.

It is an arithmetic number, because the mean of its divisors is an integer number (67810059).

Almost surely, 2^135620117 is an apocalyptic number.

It is an amenable number.

135620117 is a deficient number, since it is larger than the sum of its proper divisors (1).

135620117 is an equidigital number, since it uses as much as digits as its factorization.

135620117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 135620117 is about 11645.6050508336. The cubic root of 135620117 is about 513.7770548718. Note that the first 3 decimals are identical.

Adding to 135620117 its reverse (711026531), we get a palindrome (846646648).

The spelling of 135620117 in words is "one hundred thirty-five million, six hundred twenty thousand, one hundred seventeen".