134820443 has 2 divisors, whose sum is σ = 134820444. Its totient is φ = 134820442.

The previous prime is 134820419. The next prime is 134820451. The reversal of 134820443 is 344028431.

It is a strong prime.

It is an emirp because it is prime and its reverse (344028431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134820443 - 2²⁴ = 118043227 is a prime.

It is not a weakly prime, because it can be changed into another prime (134820403) 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, 67410221 + 67410222.

It is an arithmetic number, because the mean of its divisors is an integer number (67410222).

Almost surely, 2^134820443 is an apocalyptic number.

134820443 is a deficient number, since it is larger than the sum of its proper divisors (1).

134820443 is an equidigital number, since it uses as much as digits as its factorization.

134820443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 134820443 is about 11611.2205646090. The cubic root of 134820443 is about 512.7652474272.

Adding to 134820443 its reverse (344028431), we get a palindrome (478848874).

The spelling of 134820443 in words is "one hundred thirty-four million, eight hundred twenty thousand, four hundred forty-three".