134920811 has 2 divisors, whose sum is σ = 134920812. Its totient is φ = 134920810.

The previous prime is 134920801. The next prime is 134920909. The reversal of 134920811 is 118029431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 134920811 - 2¹⁰ = 134919787 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (134920801) 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, 67460405 + 67460406.

It is an arithmetic number, because the mean of its divisors is an integer number (67460406).

Almost surely, 2^134920811 is an apocalyptic number.

134920811 is a deficient number, since it is larger than the sum of its proper divisors (1).

134920811 is an equidigital number, since it uses as much as digits as its factorization.

134920811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 134920811 is about 11615.5417867614. The cubic root of 134920811 is about 512.8924597285.

The spelling of 134920811 in words is "one hundred thirty-four million, nine hundred twenty thousand, eight hundred eleven".