136508 has 6 divisors (see below), whose sum is σ = 238896. Its totient is φ = 68252.

The previous prime is 136501. The next prime is 136511. The reversal of 136508 is 805631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17060 + ... + 17067.

It is an arithmetic number, because the mean of its divisors is an integer number (39816).

2¹³⁶⁵⁰⁸ is an apocalyptic number.

It is an amenable number.

136508 is a deficient number, since it is larger than the sum of its proper divisors (102388).

136508 is a wasteful number, since it uses less digits than its factorization.

136508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34131 (or 34129 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 136508 is about 369.4698905188. The cubic root of 136508 is about 51.4895822080.

The spelling of 136508 in words is "one hundred thirty-six thousand, five hundred eight".