136123171 has 2 divisors, whose sum is σ = 136123172. Its totient is φ = 136123170.

The previous prime is 136123123. The next prime is 136123243. The reversal of 136123171 is 171321631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136123171 - 2¹⁷ = 135992099 is a prime.

It is not a weakly prime, because it can be changed into another prime (136127171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68061585 + 68061586.

It is an arithmetic number, because the mean of its divisors is an integer number (68061586).

Almost surely, 2^136123171 is an apocalyptic number.

136123171 is a deficient number, since it is larger than the sum of its proper divisors (1).

136123171 is an equidigital number, since it uses as much as digits as its factorization.

136123171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 756, while the sum is 25.

The square root of 136123171 is about 11667.1835075994. The cubic root of 136123171 is about 514.4115199759.

The spelling of 136123171 in words is "one hundred thirty-six million, one hundred twenty-three thousand, one hundred seventy-one".