135941 has 4 divisors (see below), whose sum is σ = 146412. Its totient is φ = 125472.

The previous prime is 135937. The next prime is 135977. The reversal of 135941 is 149531.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 73441 + 62500 = 271^2 + 250^2 .

It is a cyclic number.

It is not a de Polignac number, because 135941 - 2² = 135937 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 (135911) 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, 5216 + ... + 5241.

It is an arithmetic number, because the mean of its divisors is an integer number (36603).

2¹³⁵⁹⁴¹ is an apocalyptic number.

It is an amenable number.

135941 is a deficient number, since it is larger than the sum of its proper divisors (10471).

135941 is a wasteful number, since it uses less digits than its factorization.

135941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10470.

The product of its digits is 540, while the sum is 23.

The square root of 135941 is about 368.7017765078. The cubic root of 135941 is about 51.4181941878.

The spelling of 135941 in words is "one hundred thirty-five thousand, nine hundred forty-one".