134879929 has 2 divisors, whose sum is σ = 134879930. Its totient is φ = 134879928.

The previous prime is 134879923. The next prime is 134879947. The reversal of 134879929 is 929978431.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83685904 + 51194025 = 9148^2 + 7155^2 .

It is an emirp because it is prime and its reverse (929978431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134879929 - 2⁹ = 134879417 is a prime.

It is not a weakly prime, because it can be changed into another prime (134879923) 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, 67439964 + 67439965.

It is an arithmetic number, because the mean of its divisors is an integer number (67439965).

Almost surely, 2^134879929 is an apocalyptic number.

It is an amenable number.

134879929 is a deficient number, since it is larger than the sum of its proper divisors (1).

134879929 is an equidigital number, since it uses as much as digits as its factorization.

134879929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 52.

The square root of 134879929 is about 11613.7818560536. The cubic root of 134879929 is about 512.8406510970.

The spelling of 134879929 in words is "one hundred thirty-four million, eight hundred seventy-nine thousand, nine hundred twenty-nine".