136530193 has 2 divisors, whose sum is σ = 136530194. Its totient is φ = 136530192.

The previous prime is 136530187. The next prime is 136530197. The reversal of 136530193 is 391035631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115627009 + 20903184 = 10753^2 + 4572^2 .

It is a cyclic number.

It is not a de Polignac number, because 136530193 - 2⁵ = 136530161 is a prime.

It is not a weakly prime, because it can be changed into another prime (136530197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68265096 + 68265097.

It is an arithmetic number, because the mean of its divisors is an integer number (68265097).

Almost surely, 2^136530193 is an apocalyptic number.

It is an amenable number.

136530193 is a deficient number, since it is larger than the sum of its proper divisors (1).

136530193 is an equidigital number, since it uses as much as digits as its factorization.

136530193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7290, while the sum is 31.

The square root of 136530193 is about 11684.6135152174. The cubic root of 136530193 is about 514.9237238968.

The spelling of 136530193 in words is "one hundred thirty-six million, five hundred thirty thousand, one hundred ninety-three".