134686 has 4 divisors (see below), whose sum is σ = 202032. Its totient is φ = 67342.

The previous prime is 134683. The next prime is 134699. The reversal of 134686 is 686431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 686431 = 79 ⋅8689.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33670 + ... + 33673.

It is an arithmetic number, because the mean of its divisors is an integer number (50508).

2¹³⁴⁶⁸⁶ is an apocalyptic number.

134686 is a deficient number, since it is larger than the sum of its proper divisors (67346).

134686 is an equidigital number, since it uses as much as digits as its factorization.

134686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67345.

The product of its digits is 3456, while the sum is 28.

The square root of 134686 is about 366.9959127838. The cubic root of 134686 is about 51.2594747503.

It can be divided in two parts, 13468 and 6, that multiplied together give a palindrome (80808).

The spelling of 134686 in words is "one hundred thirty-four thousand, six hundred eighty-six".