134728879 has 2 divisors, whose sum is σ = 134728880. Its totient is φ = 134728878.

The previous prime is 134728843. The next prime is 134728889. The reversal of 134728879 is 978827431.

134728879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (978827431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134728879 - 2¹⁷ = 134597807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134728889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67364439 + 67364440.

It is an arithmetic number, because the mean of its divisors is an integer number (67364440).

Almost surely, 2^134728879 is an apocalyptic number.

134728879 is a deficient number, since it is larger than the sum of its proper divisors (1).

134728879 is an equidigital number, since it uses as much as digits as its factorization.

134728879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 49.

The square root of 134728879 is about 11607.2769847195. The cubic root of 134728879 is about 512.6491387495.

The spelling of 134728879 in words is "one hundred thirty-four million, seven hundred twenty-eight thousand, eight hundred seventy-nine".