136241920 has 72 divisors (see below), whose sum is σ = 328846896. Its totient is φ = 54079488.

The previous prime is 136241891. The next prime is 136241999. The reversal of 136241920 is 29142631.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208314 + ... + 208966.

It is an arithmetic number, because the mean of its divisors is an integer number (4567318).

Almost surely, 2^136241920 is an apocalyptic number.

136241920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136241920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164423448).

136241920 is an abundant number, since it is smaller than the sum of its proper divisors (192604976).

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

136241920 is an equidigital number, since it uses as much as digits as its factorization.

136241920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837 (or 823 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 136241920 is about 11672.2714156243. The cubic root of 136241920 is about 514.5610612545.

The spelling of 136241920 in words is "one hundred thirty-six million, two hundred forty-one thousand, nine hundred twenty".