134641979 has 2 divisors, whose sum is σ = 134641980. Its totient is φ = 134641978.

The previous prime is 134641967. The next prime is 134642009. The reversal of 134641979 is 979146431.

It is a weak prime.

It is an emirp because it is prime and its reverse (979146431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134641979 - 2⁴ = 134641963 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (134641919) 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, 67320989 + 67320990.

It is an arithmetic number, because the mean of its divisors is an integer number (67320990).

Almost surely, 2^134641979 is an apocalyptic number.

134641979 is a deficient number, since it is larger than the sum of its proper divisors (1).

134641979 is an equidigital number, since it uses as much as digits as its factorization.

134641979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 44.

The square root of 134641979 is about 11603.5330395531. The cubic root of 134641979 is about 512.5388956401.

The spelling of 134641979 in words is "one hundred thirty-four million, six hundred forty-one thousand, nine hundred seventy-nine".