134542 has 4 divisors (see below), whose sum is σ = 201816. Its totient is φ = 67270.

The previous prime is 134513. The next prime is 134581. The reversal of 134542 is 245431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 245431 = 83 ⋅2957.

It is a congruent number.

It is an unprimeable number.

134542 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, 33634 + ... + 33637.

It is an arithmetic number, because the mean of its divisors is an integer number (50454).

2¹³⁴⁵⁴² is an apocalyptic number.

134542 is a deficient number, since it is larger than the sum of its proper divisors (67274).

134542 is an equidigital number, since it uses as much as digits as its factorization.

134542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67273.

The product of its digits is 480, while the sum is 19.

The square root of 134542 is about 366.7996728461. The cubic root of 134542 is about 51.2412001548.

Adding to 134542 its reverse (245431), we get a palindrome (379973).

Subtracting 134542 from its reverse (245431), we obtain a square (110889 = 333²).

It can be divided in two parts, 13454 and 2, that added together give a square (13456 = 116²).

The spelling of 134542 in words is "one hundred thirty-four thousand, five hundred forty-two".