136418 has 4 divisors (see below), whose sum is σ = 204630. Its totient is φ = 68208.

The previous prime is 136417. The next prime is 136421. The reversal of 136418 is 814631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 117649 + 18769 = 343^2 + 137^2 .

It is a junction number, because it is equal to n+sod(n) for n = 136393 and 136402.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 136418.

It is not an unprimeable number, because it can be changed into a prime (136417) 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, 34103 + ... + 34106.

2¹³⁶⁴¹⁸ is an apocalyptic number.

136418 is a deficient number, since it is larger than the sum of its proper divisors (68212).

136418 is an equidigital number, since it uses as much as digits as its factorization.

136418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68211.

The product of its digits is 576, while the sum is 23.

The square root of 136418 is about 369.3480743147. The cubic root of 136418 is about 51.4782639917.

The spelling of 136418 in words is "one hundred thirty-six thousand, four hundred eighteen".