135965 has 8 divisors (see below), whose sum is σ = 165888. Its totient is φ = 106960.

The previous prime is 135937. The next prime is 135977. The reversal of 135965 is 569531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135965 - 2¹⁶ = 70429 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164 + ... + 546.

It is an arithmetic number, because the mean of its divisors is an integer number (20736).

2¹³⁵⁹⁶⁵ is an apocalyptic number.

It is an amenable number.

135965 is a deficient number, since it is larger than the sum of its proper divisors (29923).

135965 is an equidigital number, since it uses as much as digits as its factorization.

135965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459.

The product of its digits is 4050, while the sum is 29.

The square root of 135965 is about 368.7343217006. The cubic root of 135965 is about 51.4212199221.

The spelling of 135965 in words is "one hundred thirty-five thousand, nine hundred sixty-five".