136393 has 2 divisors, whose sum is σ = 136394. Its totient is φ = 136392.

The previous prime is 136379. The next prime is 136397. The reversal of 136393 is 393631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131769 + 4624 = 363^2 + 68^2 .

It is a cyclic number.

It is not a de Polignac number, because 136393 - 2⁵ = 136361 is a prime.

It is not a weakly prime, because it can be changed into another prime (136397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68196 + 68197.

It is an arithmetic number, because the mean of its divisors is an integer number (68197).

2¹³⁶³⁹³ is an apocalyptic number.

It is an amenable number.

136393 is a deficient number, since it is larger than the sum of its proper divisors (1).

136393 is an equidigital number, since it uses as much as digits as its factorization.

136393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1458, while the sum is 25.

The square root of 136393 is about 369.3142293495. The cubic root of 136393 is about 51.4751191594.

It can be divided in two parts, 136 and 393, that added together give a square (529 = 23²).

The spelling of 136393 in words is "one hundred thirty-six thousand, three hundred ninety-three".