135206858 has 8 divisors (see below), whose sum is σ = 202861380. Its totient is φ = 67586400.

The previous prime is 135206849. The next prime is 135206861. The reversal of 135206858 is 858602531.

135206858 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 130484929 + 4721929 = 11423^2 + 2173^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7238 + ... + 17966.

Almost surely, 2^135206858 is an apocalyptic number.

135206858 is a deficient number, since it is larger than the sum of its proper divisors (67654522).

135206858 is a wasteful number, since it uses less digits than its factorization.

135206858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17032.

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 135206858 is about 11627.8483822245. The cubic root of 135206858 is about 513.2546667369.

The spelling of 135206858 in words is "one hundred thirty-five million, two hundred six thousand, eight hundred fifty-eight".