135698 has 8 divisors (see below), whose sum is σ = 214320. Its totient is φ = 64260.

The previous prime is 135697. The next prime is 135701. The reversal of 135698 is 896531.

135698 is nontrivially palindromic in base 4 and base 16.

135698 is an esthetic number in base 16, because in such base its adjacent digits differ by 1.

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

It is an Ulam number.

135698 is an undulating number in base 16.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (135697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1748 + ... + 1823.

It is an arithmetic number, because the mean of its divisors is an integer number (26790).

2¹³⁵⁶⁹⁸ is an apocalyptic number.

135698 is a deficient number, since it is larger than the sum of its proper divisors (78622).

135698 is a wasteful number, since it uses less digits than its factorization.

135698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3592.

The product of its digits is 6480, while the sum is 32.

The square root of 135698 is about 368.3720944914. The cubic root of 135698 is about 51.3875385518.

The spelling of 135698 in words is "one hundred thirty-five thousand, six hundred ninety-eight".