136361 has 2 divisors, whose sum is σ = 136362. Its totient is φ = 136360.

The previous prime is 136351. The next prime is 136373. The reversal of 136361 is 163631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133225 + 3136 = 365^2 + 56^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136361 is a prime.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 136361.

It is not a weakly prime, because it can be changed into another prime (136351) 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, 68180 + 68181.

It is an arithmetic number, because the mean of its divisors is an integer number (68181).

2¹³⁶³⁶¹ is an apocalyptic number.

It is an amenable number.

136361 is a deficient number, since it is larger than the sum of its proper divisors (1).

136361 is an equidigital number, since it uses as much as digits as its factorization.

136361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324, while the sum is 20.

The square root of 136361 is about 369.2709032675. The cubic root of 136361 is about 51.4710932131.

Adding to 136361 its reverse (163631), we get a palindrome (299992).

The spelling of 136361 in words is "one hundred thirty-six thousand, three hundred sixty-one".