134243555 has 4 divisors (see below), whose sum is σ = 161092272. Its totient is φ = 107394840.

The previous prime is 134243539. The next prime is 134243563. The reversal of 134243555 is 555342431.

It is a happy number.

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

It is not a de Polignac number, because 134243555 - 2⁴ = 134243539 is a prime.

It is a Duffinian number.

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, 13424351 + ... + 13424360.

It is an arithmetic number, because the mean of its divisors is an integer number (40273068).

Almost surely, 2^134243555 is an apocalyptic number.

134243555 is a deficient number, since it is larger than the sum of its proper divisors (26848717).

134243555 is an equidigital number, since it uses as much as digits as its factorization.

134243555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26848716.

The product of its digits is 36000, while the sum is 32.

The square root of 134243555 is about 11586.3521006398. The cubic root of 134243555 is about 512.0328386225.

Adding to 134243555 its reverse (555342431), we get a palindrome (689585986).

The spelling of 134243555 in words is "one hundred thirty-four million, two hundred forty-three thousand, five hundred fifty-five".