136723308 has 12 divisors (see below), whose sum is σ = 319021080. Its totient is φ = 45574432.

The previous prime is 136723291. The next prime is 136723309. The reversal of 136723308 is 803327631.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (136723309) 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, 5696793 + ... + 5696816.

It is an arithmetic number, because the mean of its divisors is an integer number (26585090).

Almost surely, 2^136723308 is an apocalyptic number.

It is an amenable number.

136723308 is an abundant number, since it is smaller than the sum of its proper divisors (182297772).

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

136723308 is a wasteful number, since it uses less digits than its factorization.

136723308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11393616 (or 11393614 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 136723308 is about 11692.8742403226. The cubic root of 136723308 is about 515.1663873095.

The spelling of 136723308 in words is "one hundred thirty-six million, seven hundred twenty-three thousand, three hundred eight".