136209210 has 64 divisors (see below), whose sum is σ = 337709952. Its totient is φ = 35133696.

The previous prime is 136209187. The next prime is 136209211. The reversal of 136209210 is 12902631.

It is not an unprimeable number, because it can be changed into a prime (136209211) 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 31 ways as a sum of consecutive naturals, for example, 307249 + ... + 307691.

It is an arithmetic number, because the mean of its divisors is an integer number (5276718).

Almost surely, 2^136209210 is an apocalyptic number.

136209210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 136209210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168854976).

136209210 is an abundant number, since it is smaller than the sum of its proper divisors (201500742).

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

136209210 is a wasteful number, since it uses less digits than its factorization.

136209210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 136209210 is about 11670.8701475083. The cubic root of 136209210 is about 514.5198780429.

The spelling of 136209210 in words is "one hundred thirty-six million, two hundred nine thousand, two hundred ten".