136215006173 has 2 divisors, whose sum is σ = 136215006174. Its totient is φ = 136215006172.

The previous prime is 136215006139. The next prime is 136215006203. The reversal of 136215006173 is 371600512631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91762343929 + 44452662244 = 302923^2 + 210838^2 .

It is a cyclic number.

It is not a de Polignac number, because 136215006173 - 2⁸ = 136215005917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136215006773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68107503086 + 68107503087.

It is an arithmetic number, because the mean of its divisors is an integer number (68107503087).

Almost surely, 2^136215006173 is an apocalyptic number.

It is an amenable number.

136215006173 is a deficient number, since it is larger than the sum of its proper divisors (1).

136215006173 is an equidigital number, since it uses as much as digits as its factorization.

136215006173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 35.

The spelling of 136215006173 in words is "one hundred thirty-six billion, two hundred fifteen million, six thousand, one hundred seventy-three".