136568 has 16 divisors (see below), whose sum is σ = 262680. Its totient is φ = 66528.

The previous prime is 136559. The next prime is 136573. The reversal of 136568 is 865631.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 136568.

It is a congruent number.

It is an unprimeable number.

136568 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 3 ways as a sum of consecutive naturals, for example, 146 + ... + 542.

2¹³⁶⁵⁶⁸ is an apocalyptic number.

It is an amenable number.

136568 is a deficient number, since it is larger than the sum of its proper divisors (126112).

136568 is a wasteful number, since it uses less digits than its factorization.

136568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 442 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 136568 is about 369.5510790134. The cubic root of 136568 is about 51.4971249220.

The spelling of 136568 in words is "one hundred thirty-six thousand, five hundred sixty-eight".