136229308109 has 4 divisors (see below), whose sum is σ = 136230145116. Its totient is φ = 136228471104.

The previous prime is 136229308097. The next prime is 136229308123. The reversal of 136229308109 is 901803922631.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 119165111209 + 17064196900 = 345203^2 + 130630^2 .

It is a cyclic number.

It is not a de Polignac number, because 136229308109 - 2²⁰ = 136228259533 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 136229308109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136229305109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86654 + ... + 529119.

It is an arithmetic number, because the mean of its divisors is an integer number (34057536279).

Almost surely, 2^136229308109 is an apocalyptic number.

It is an amenable number.

136229308109 is a deficient number, since it is larger than the sum of its proper divisors (837007).

136229308109 is an equidigital number, since it uses as much as digits as its factorization.

136229308109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837006.

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 136229308109 in words is "one hundred thirty-six billion, two hundred twenty-nine million, three hundred eight thousand, one hundred nine".