136223808 has 112 divisors (see below), whose sum is σ = 417454080. Its totient is φ = 38398464.

The previous prime is 136223803. The next prime is 136223821. The reversal of 136223808 is 808322631.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (136223803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105535 + ... + 106817.

Almost surely, 2^136223808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136223808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208727040).

136223808 is an abundant number, since it is smaller than the sum of its proper divisors (281230272).

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

136223808 is a wasteful number, since it uses less digits than its factorization.

136223808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384 (or 1374 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 136223808 is about 11671.4955339922. The cubic root of 136223808 is about 514.5382583293.

The spelling of 136223808 in words is "one hundred thirty-six million, two hundred twenty-three thousand, eight hundred eight".