134245 has 4 divisors (see below), whose sum is σ = 161100. Its totient is φ = 107392.

The previous prime is 134243. The next prime is 134257. The reversal of 134245 is 542431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 542431 = 19 ⋅28549.

It can be written as a sum of positive squares in 2 ways, for example, as 42436 + 91809 = 206^2 + 303^2 .

It is a cyclic number.

It is not a de Polignac number, because 134245 - 2¹ = 134243 is a prime.

It is a d-powerful number, because it can be written as 1 + 3³ + 2¹⁷ + 4 + 4² + 5⁵ .

134245 is a lucky number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13420 + ... + 13429.

It is an arithmetic number, because the mean of its divisors is an integer number (40275).

2¹³⁴²⁴⁵ is an apocalyptic number.

It is an amenable number.

134245 is a deficient number, since it is larger than the sum of its proper divisors (26855).

134245 is an equidigital number, since it uses as much as digits as its factorization.

134245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26854.

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

The square root of 134245 is about 366.3945960300. The cubic root of 134245 is about 51.2034675793.

Adding to 134245 its reverse (542431), we get a palindrome (676676).

The spelling of 134245 in words is "one hundred thirty-four thousand, two hundred forty-five".