134973979 has 12 divisors (see below), whose sum is σ = 159357864. Its totient is φ = 113962464.

The previous prime is 134973977. The next prime is 134973983. The reversal of 134973979 is 979379431.

It is a happy number.

It is not a de Polignac number, because 134973979 - 2¹ = 134973977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134973977) 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 in 11 ways as a sum of consecutive naturals, for example, 17274 + ... + 23839.

It is an arithmetic number, because the mean of its divisors is an integer number (13279822).

Almost surely, 2^134973979 is an apocalyptic number.

134973979 is a deficient number, since it is larger than the sum of its proper divisors (24383885).

134973979 is an equidigital number, since it uses as much as digits as its factorization.

134973979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41194 (or 41187 counting only the distinct ones).

The product of its digits is 1285956, while the sum is 52.

The square root of 134973979 is about 11617.8302191072. The cubic root of 134973979 is about 512.9598224154.

The spelling of 134973979 in words is "one hundred thirty-four million, nine hundred seventy-three thousand, nine hundred seventy-nine".