134255591 has 2 divisors, whose sum is σ = 134255592. Its totient is φ = 134255590.

The previous prime is 134255543. The next prime is 134255593. The reversal of 134255591 is 195552431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 134255591 - 2¹⁰ = 134254567 is a prime.

Together with 134255593, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134255593) 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 as a sum of consecutive naturals, namely, 67127795 + 67127796.

It is an arithmetic number, because the mean of its divisors is an integer number (67127796).

Almost surely, 2^134255591 is an apocalyptic number.

134255591 is a deficient number, since it is larger than the sum of its proper divisors (1).

134255591 is an equidigital number, since it uses as much as digits as its factorization.

134255591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27000, while the sum is 35.

The square root of 134255591 is about 11586.8714932030. The cubic root of 134255591 is about 512.0481407676.

The spelling of 134255591 in words is "one hundred thirty-four million, two hundred fifty-five thousand, five hundred ninety-one".