134490605 has 4 divisors (see below), whose sum is σ = 161388732. Its totient is φ = 107592480.

The previous prime is 134490593. The next prime is 134490647. The reversal of 134490605 is 506094431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 506094431 = 19 ⋅26636549.

It can be written as a sum of positive squares in 2 ways, for example, as 48260809 + 86229796 = 6947^2 + 9286^2 .

It is not a de Polignac number, because 134490605 - 2⁴ = 134490589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13449056 + ... + 13449065.

It is an arithmetic number, because the mean of its divisors is an integer number (40347183).

Almost surely, 2^134490605 is an apocalyptic number.

It is an amenable number.

134490605 is a deficient number, since it is larger than the sum of its proper divisors (26898127).

134490605 is an equidigital number, since it uses as much as digits as its factorization.

134490605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26898126.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 134490605 is about 11597.0084504582. The cubic root of 134490605 is about 512.3467461657.

The spelling of 134490605 in words is "one hundred thirty-four million, four hundred ninety thousand, six hundred five".