134243345 has 4 divisors (see below), whose sum is σ = 161092020. Its totient is φ = 107394672.

The previous prime is 134243311. The next prime is 134243359. The reversal of 134243345 is 543342431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543342431 = 73 ⋅7443047.

It can be written as a sum of positive squares in 2 ways, for example, as 45751696 + 88491649 = 6764^2 + 9407^2 .

It is a cyclic number.

It is not a de Polignac number, because 134243345 - 2¹⁰ = 134242321 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13424330 + ... + 13424339.

It is an arithmetic number, because the mean of its divisors is an integer number (40273005).

Almost surely, 2^134243345 is an apocalyptic number.

It is an amenable number.

134243345 is a deficient number, since it is larger than the sum of its proper divisors (26848675).

134243345 is an equidigital number, since it uses as much as digits as its factorization.

134243345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26848674.

The product of its digits is 17280, while the sum is 29.

The square root of 134243345 is about 11586.3430382498. The cubic root of 134243345 is about 512.0325716278.

Adding to 134243345 its reverse (543342431), we get a palindrome (677585776).

The spelling of 134243345 in words is "one hundred thirty-four million, two hundred forty-three thousand, three hundred forty-five".