136168 has 8 divisors (see below), whose sum is σ = 255330. Its totient is φ = 68080.

The previous prime is 136163. The next prime is 136177. The reversal of 136168 is 861631.

It can be written as a sum of positive squares in only one way, i.e., 79524 + 56644 = 282^2 + 238^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (136163) by changing a digit.

136168 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 as a sum of consecutive naturals, namely, 8503 + ... + 8518.

2¹³⁶¹⁶⁸ is an apocalyptic number.

It is an amenable number.

136168 is a deficient number, since it is larger than the sum of its proper divisors (119162).

136168 is a wasteful number, since it uses less digits than its factorization.

136168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17027 (or 17023 counting only the distinct ones).

The product of its digits is 864, while the sum is 25.

The square root of 136168 is about 369.0094849729. The cubic root of 136168 is about 51.4467983601.

Adding to 136168 its reverse (861631), we get a palindrome (997799).

The spelling of 136168 in words is "one hundred thirty-six thousand, one hundred sixty-eight".