136816459 has 8 divisors (see below), whose sum is σ = 156008160. Its totient is φ = 118862976.

The previous prime is 136816451. The next prime is 136816481. The reversal of 136816459 is 954618631.

136816459 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136816459 - 2³ = 136816451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136816451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309319 + ... + 309760.

It is an arithmetic number, because the mean of its divisors is an integer number (19501020).

Almost surely, 2^136816459 is an apocalyptic number.

136816459 is a deficient number, since it is larger than the sum of its proper divisors (19191701).

136816459 is a wasteful number, since it uses less digits than its factorization.

136816459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619109.

The product of its digits is 155520, while the sum is 43.

The square root of 136816459 is about 11696.8568000126. The cubic root of 136816459 is about 515.2833568072.

The spelling of 136816459 in words is "one hundred thirty-six million, eight hundred sixteen thousand, four hundred fifty-nine".