136238 has 8 divisors (see below), whose sum is σ = 216432. Its totient is φ = 64096.

The previous prime is 136237. The next prime is 136247. The reversal of 136238 is 832631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136237) 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 in 3 ways as a sum of consecutive naturals, for example, 1970 + ... + 2037.

It is an arithmetic number, because the mean of its divisors is an integer number (27054).

2¹³⁶²³⁸ is an apocalyptic number.

136238 is a deficient number, since it is larger than the sum of its proper divisors (80194).

136238 is a wasteful number, since it uses less digits than its factorization.

136238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4026.

The product of its digits is 864, while the sum is 23.

The square root of 136238 is about 369.1043212968. The cubic root of 136238 is about 51.4556126164.

Adding to 136238 its reverse (832631), we get a palindrome (968869).

It can be divided in two parts, 13623 and 8, that added together give a palindrome (13631).

The spelling of 136238 in words is "one hundred thirty-six thousand, two hundred thirty-eight".