136816436 has 12 divisors (see below), whose sum is σ = 244523328. Its totient is φ = 66952632.

The previous prime is 136816331. The next prime is 136816441. The reversal of 136816436 is 634618631.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 136816436.

It is a congruent number.

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, 363686 + ... + 364061.

It is an arithmetic number, because the mean of its divisors is an integer number (20376944).

Almost surely, 2^136816436 is an apocalyptic number.

It is an amenable number.

136816436 is a deficient number, since it is larger than the sum of its proper divisors (107706892).

136816436 is a wasteful number, since it uses less digits than its factorization.

136816436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727798 (or 727796 counting only the distinct ones).

The product of its digits is 62208, while the sum is 38.

The square root of 136816436 is about 11696.8558168424. The cubic root of 136816436 is about 515.2833279327.

The spelling of 136816436 in words is "one hundred thirty-six million, eight hundred sixteen thousand, four hundred thirty-six".