135206606 has 4 divisors (see below), whose sum is σ = 202809912. Its totient is φ = 67603302.

The previous prime is 135206597. The next prime is 135206609. The reversal of 135206606 is 606602531.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135206609) by changing a digit.

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 as a sum of consecutive naturals, namely, 33801650 + ... + 33801653.

It is an arithmetic number, because the mean of its divisors is an integer number (50702478).

Almost surely, 2^135206606 is an apocalyptic number.

135206606 is a deficient number, since it is larger than the sum of its proper divisors (67603306).

135206606 is an equidigital number, since it uses as much as digits as its factorization.

135206606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67603305.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 135206606 is about 11627.8375461648. The cubic root of 135206606 is about 513.2543478668.

The spelling of 135206606 in words is "one hundred thirty-five million, two hundred six thousand, six hundred six".