134905443 has 4 divisors (see below), whose sum is σ = 179873928. Its totient is φ = 89936960.

The previous prime is 134905427. The next prime is 134905469. The reversal of 134905443 is 344509431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 134905443 - 2⁴ = 134905427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134905543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22484238 + ... + 22484243.

It is an arithmetic number, because the mean of its divisors is an integer number (44968482).

Almost surely, 2^134905443 is an apocalyptic number.

134905443 is a deficient number, since it is larger than the sum of its proper divisors (44968485).

134905443 is an equidigital number, since it uses as much as digits as its factorization.

134905443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44968484.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 134905443 is about 11614.8802404502. The cubic root of 134905443 is about 512.8729855136.

The spelling of 134905443 in words is "one hundred thirty-four million, nine hundred five thousand, four hundred forty-three".