134861 has 4 divisors (see below), whose sum is σ = 142812. Its totient is φ = 126912.

The previous prime is 134857. The next prime is 134867. The reversal of 134861 is 168431.

134861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 168431 = 43 ⋅3917.

It can be written as a sum of positive squares in 2 ways, for example, as 72361 + 62500 = 269^2 + 250^2 .

It is a cyclic number.

It is not a de Polignac number, because 134861 - 2² = 134857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3950 + ... + 3983.

It is an arithmetic number, because the mean of its divisors is an integer number (35703).

2¹³⁴⁸⁶¹ is an apocalyptic number.

It is an amenable number.

134861 is a deficient number, since it is larger than the sum of its proper divisors (7951).

134861 is an equidigital number, since it uses as much as digits as its factorization.

134861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7950.

The product of its digits is 576, while the sum is 23.

The square root of 134861 is about 367.2342576612. The cubic root of 134861 is about 51.2816659351.

It can be divided in two parts, 1348 and 61, that multiplied together give a palindrome (82228).

The spelling of 134861 in words is "one hundred thirty-four thousand, eight hundred sixty-one".