136220071 has 8 divisors (see below), whose sum is σ = 147146384. Its totient is φ = 125357760.

The previous prime is 136220041. The next prime is 136220093. The reversal of 136220071 is 170022631.

136220071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136220071 - 2⁵ = 136220039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136220011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11526 + ... + 20131.

It is an arithmetic number, because the mean of its divisors is an integer number (18393298).

Almost surely, 2^136220071 is an apocalyptic number.

136220071 is a deficient number, since it is larger than the sum of its proper divisors (10926313).

136220071 is a wasteful number, since it uses less digits than its factorization.

136220071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32001.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 136220071 is about 11671.3354420135. The cubic root of 136220071 is about 514.5335532118.

The spelling of 136220071 in words is "one hundred thirty-six million, two hundred twenty thousand, seventy-one".