135616161 has 16 divisors (see below), whose sum is σ = 184317120. Its totient is φ = 88670400.

The previous prime is 135616141. The next prime is 135616171. The reversal of 135616161 is 161616531.

It is not a de Polignac number, because 135616161 - 2¹⁷ = 135485089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135616111) 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 in 15 ways as a sum of consecutive naturals, for example, 123531 + ... + 124623.

It is an arithmetic number, because the mean of its divisors is an integer number (11519820).

Almost surely, 2^135616161 is an apocalyptic number.

It is an amenable number.

135616161 is a deficient number, since it is larger than the sum of its proper divisors (48700959).

135616161 is a wasteful number, since it uses less digits than its factorization.

135616161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856.

The product of its digits is 3240, while the sum is 30.

The square root of 135616161 is about 11645.4352001117. The cubic root of 135616161 is about 513.7720592466.

The spelling of 135616161 in words is "one hundred thirty-five million, six hundred sixteen thousand, one hundred sixty-one".