135080161 has 4 divisors (see below), whose sum is σ = 135116800. Its totient is φ = 135043524.

The previous prime is 135080137. The next prime is 135080167. The reversal of 135080161 is 161080531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 161080531 = 673 ⋅239347.

It is a cyclic number.

It is not a de Polignac number, because 135080161 - 2⁵ = 135080129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135080167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12081 + ... + 20398.

It is an arithmetic number, because the mean of its divisors is an integer number (33779200).

Almost surely, 2^135080161 is an apocalyptic number.

It is an amenable number.

135080161 is a deficient number, since it is larger than the sum of its proper divisors (36639).

135080161 is an equidigital number, since it uses as much as digits as its factorization.

135080161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36638.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 135080161 is about 11622.3991068970. The cubic root of 135080161 is about 513.0942997512.

The spelling of 135080161 in words is "one hundred thirty-five million, eighty thousand, one hundred sixty-one".