136816458 has 8 divisors (see below), whose sum is σ = 273632928. Its totient is φ = 45605484.

The previous prime is 136816451. The next prime is 136816481. The reversal of 136816458 is 854618631.

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

136816458 is an admirable number.

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

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, 11401366 + ... + 11401377.

It is an arithmetic number, because the mean of its divisors is an integer number (34204116).

Almost surely, 2^136816458 is an apocalyptic number.

136816458 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

136816458 is a wasteful number, since it uses less digits than its factorization.

136816458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22802748.

The product of its digits is 138240, while the sum is 42.

The square root of 136816458 is about 11696.8567572660. The cubic root of 136816458 is about 515.2833555517.

The spelling of 136816458 in words is "one hundred thirty-six million, eight hundred sixteen thousand, four hundred fifty-eight".