136268 has 24 divisors (see below), whose sum is σ = 275520. Its totient is φ = 58320.

The previous prime is 136261. The next prime is 136273. The reversal of 136268 is 862631.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (136261) by changing a digit.

136268 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 755 + ... + 917.

It is an arithmetic number, because the mean of its divisors is an integer number (11480).

2¹³⁶²⁶⁸ is an apocalyptic number.

It is an amenable number.

136268 is an abundant number, since it is smaller than the sum of its proper divisors (139252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136268 is a wasteful number, since it uses less digits than its factorization.

136268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 195 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

The square root of 136268 is about 369.1449579772. The cubic root of 136268 is about 51.4593892306.

Adding to 136268 its reverse (862631), we get a palindrome (998899).

It can be divided in two parts, 136 and 268, that added together give a palindrome (404).

The spelling of 136268 in words is "one hundred thirty-six thousand, two hundred sixty-eight".