135634 has 8 divisors (see below), whose sum is σ = 206460. Its totient is φ = 66816.

The previous prime is 135623. The next prime is 135637. The reversal of 135634 is 436531.

It can be written as a sum of positive squares in 2 ways, for example, as 124609 + 11025 = 353^2 + 105^2 .

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (135637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319 + ... + 610.

2¹³⁵⁶³⁴ is an apocalyptic number.

135634 is a deficient number, since it is larger than the sum of its proper divisors (70826).

135634 is an equidigital number, since it uses as much as digits as its factorization.

135634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004.

The product of its digits is 1080, while the sum is 22.

The square root of 135634 is about 368.2852155599. The cubic root of 135634 is about 51.3794585515.

The spelling of 135634 in words is "one hundred thirty-five thousand, six hundred thirty-four".