135061 has 4 divisors (see below), whose sum is σ = 136224. Its totient is φ = 133900.

The previous prime is 135059. The next prime is 135077. The reversal of 135061 is 160531.

135061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 135061 - 2¹ = 135059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135461) 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, 385 + ... + 646.

It is an arithmetic number, because the mean of its divisors is an integer number (34056).

2¹³⁵⁰⁶¹ is an apocalyptic number.

It is an amenable number.

135061 is a deficient number, since it is larger than the sum of its proper divisors (1163).

135061 is a wasteful number, since it uses less digits than its factorization.

135061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 135061 is about 367.5064625282. The cubic root of 135061 is about 51.3070037948.

Adding to 135061 its reverse (160531), we get a palindrome (295592).

The spelling of 135061 in words is "one hundred thirty-five thousand, sixty-one".