134487205 has 4 divisors (see below), whose sum is σ = 161384652. Its totient is φ = 107589760.

The previous prime is 134487191. The next prime is 134487209. The reversal of 134487205 is 502784431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 502784431 = 3527 ⋅142553.

It can be written as a sum of positive squares in 2 ways, for example, as 31708161 + 102779044 = 5631^2 + 10138^2 .

It is not a de Polignac number, because 134487205 - 2⁵ = 134487173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134487209) 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, 13448716 + ... + 13448725.

It is an arithmetic number, because the mean of its divisors is an integer number (40346163).

Almost surely, 2^134487205 is an apocalyptic number.

It is an amenable number.

134487205 is a deficient number, since it is larger than the sum of its proper divisors (26897447).

134487205 is an equidigital number, since it uses as much as digits as its factorization.

134487205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26897446.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 134487205 is about 11596.8618600033. The cubic root of 134487205 is about 512.3424286556.

The spelling of 134487205 in words is "one hundred thirty-four million, four hundred eighty-seven thousand, two hundred five".