134440043 has 4 divisors (see below), whose sum is σ = 135696600. Its totient is φ = 133183488.

The previous prime is 134440039. The next prime is 134440049. The reversal of 134440043 is 340044431.

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 134440043 - 2² = 134440039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134440049) by changing a digit.

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, 628118 + ... + 628331.

It is an arithmetic number, because the mean of its divisors is an integer number (33924150).

Almost surely, 2^134440043 is an apocalyptic number.

134440043 is a deficient number, since it is larger than the sum of its proper divisors (1256557).

134440043 is a wasteful number, since it uses less digits than its factorization.

134440043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256556.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 134440043 is about 11594.8282867837. The cubic root of 134440043 is about 512.2825322051.

Adding to 134440043 its reverse (340044431), we get a palindrome (474484474).

The spelling of 134440043 in words is "one hundred thirty-four million, four hundred forty thousand, forty-three".