134768591 has 2 divisors, whose sum is σ = 134768592. Its totient is φ = 134768590.

The previous prime is 134768587. The next prime is 134768603. The reversal of 134768591 is 195867431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 134768591 - 2² = 134768587 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134768521) 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, 67384295 + 67384296.

It is an arithmetic number, because the mean of its divisors is an integer number (67384296).

Almost surely, 2^134768591 is an apocalyptic number.

134768591 is a deficient number, since it is larger than the sum of its proper divisors (1).

134768591 is an equidigital number, since it uses as much as digits as its factorization.

134768591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 44.

The square root of 134768591 is about 11608.9875096840. The cubic root of 134768591 is about 512.6995024202.

The spelling of 134768591 in words is "one hundred thirty-four million, seven hundred sixty-eight thousand, five hundred ninety-one".