135918847 has 4 divisors (see below), whose sum is σ = 136630656. Its totient is φ = 135207040.

The previous prime is 135918823. The next prime is 135918901. The reversal of 135918847 is 748819531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 748819531 = 41 ⋅18263891.

It is a cyclic number.

It is not a de Polignac number, because 135918847 - 2⁷ = 135918719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135918797 and 135918806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135918047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355618 + ... + 355999.

It is an arithmetic number, because the mean of its divisors is an integer number (34157664).

Almost surely, 2^135918847 is an apocalyptic number.

135918847 is a deficient number, since it is larger than the sum of its proper divisors (711809).

135918847 is an equidigital number, since it uses as much as digits as its factorization.

135918847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711808.

The product of its digits is 241920, while the sum is 46.

The square root of 135918847 is about 11658.4238643137. The cubic root of 135918847 is about 514.1540099289.

The spelling of 135918847 in words is "one hundred thirty-five million, nine hundred eighteen thousand, eight hundred forty-seven".