136639301 has 2 divisors, whose sum is σ = 136639302. Its totient is φ = 136639300.

The previous prime is 136639277. The next prime is 136639303. The reversal of 136639301 is 103936631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134536801 + 2102500 = 11599^2 + 1450^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136639301 is a prime.

Together with 136639303, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136639303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68319650 + 68319651.

It is an arithmetic number, because the mean of its divisors is an integer number (68319651).

Almost surely, 2^136639301 is an apocalyptic number.

It is an amenable number.

136639301 is a deficient number, since it is larger than the sum of its proper divisors (1).

136639301 is an equidigital number, since it uses as much as digits as its factorization.

136639301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 136639301 is about 11689.2814578142. The cubic root of 136639301 is about 515.0608543416.

The spelling of 136639301 in words is "one hundred thirty-six million, six hundred thirty-nine thousand, three hundred one".