134434591 has 2 divisors, whose sum is σ = 134434592. Its totient is φ = 134434590.

The previous prime is 134434583. The next prime is 134434603. The reversal of 134434591 is 195434431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 134434591 - 2³ = 134434583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134434501) 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 as a sum of consecutive naturals, namely, 67217295 + 67217296.

It is an arithmetic number, because the mean of its divisors is an integer number (67217296).

Almost surely, 2^134434591 is an apocalyptic number.

134434591 is a deficient number, since it is larger than the sum of its proper divisors (1).

134434591 is an equidigital number, since it uses as much as digits as its factorization.

134434591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 34.

The square root of 134434591 is about 11594.5931795816. The cubic root of 134434591 is about 512.2756071797.

The spelling of 134434591 in words is "one hundred thirty-four million, four hundred thirty-four thousand, five hundred ninety-one".