136347918 has 32 divisors (see below), whose sum is σ = 315415296. Its totient is φ = 38486208.

The previous prime is 136347907. The next prime is 136347941. The reversal of 136347918 is 819743631.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 136347918.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16071 + ... + 23042.

It is an arithmetic number, because the mean of its divisors is an integer number (9856728).

Almost surely, 2^136347918 is an apocalyptic number.

136347918 is an abundant number, since it is smaller than the sum of its proper divisors (179067378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136347918 is a wasteful number, since it uses less digits than its factorization.

136347918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39208.

The product of its digits is 108864, while the sum is 42.

The square root of 136347918 is about 11676.8111229051. The cubic root of 136347918 is about 514.6944717461.

The spelling of 136347918 in words is "one hundred thirty-six million, three hundred forty-seven thousand, nine hundred eighteen".