134478871 has 2 divisors, whose sum is σ = 134478872. Its totient is φ = 134478870.

The previous prime is 134478803. The next prime is 134478881. The reversal of 134478871 is 178874431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 134478871 - 2⁹ = 134478359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134478881) 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, 67239435 + 67239436.

It is an arithmetic number, because the mean of its divisors is an integer number (67239436).

Almost surely, 2^134478871 is an apocalyptic number.

134478871 is a deficient number, since it is larger than the sum of its proper divisors (1).

134478871 is an equidigital number, since it uses as much as digits as its factorization.

134478871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 150528, while the sum is 43.

The square root of 134478871 is about 11596.5025330916. The cubic root of 134478871 is about 512.3318453688.

The spelling of 134478871 in words is "one hundred thirty-four million, four hundred seventy-eight thousand, eight hundred seventy-one".