135918806 has 4 divisors (see below), whose sum is σ = 203878212. Its totient is φ = 67959402.

The previous prime is 135918803. The next prime is 135918821. The reversal of 135918806 is 608819531.

135918806 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 608819531 = 7853 ⋅77527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135918803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33979700 + ... + 33979703.

It is an arithmetic number, because the mean of its divisors is an integer number (50969553).

Almost surely, 2^135918806 is an apocalyptic number.

135918806 is a deficient number, since it is larger than the sum of its proper divisors (67959406).

135918806 is an equidigital number, since it uses as much as digits as its factorization.

135918806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67959405.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 135918806 is about 11658.4221059284. The cubic root of 135918806 is about 514.1539582306.

The spelling of 135918806 in words is "one hundred thirty-five million, nine hundred eighteen thousand, eight hundred six".