134856479 has 4 divisors (see below), whose sum is σ = 139206720. Its totient is φ = 130506240.

The previous prime is 134856457. The next prime is 134856499. The reversal of 134856479 is 974658431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 974658431 = 4297 ⋅226823.

It is a cyclic number.

It is not a de Polignac number, because 134856479 - 2²⁰ = 133807903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134856419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2175074 + ... + 2175135.

It is an arithmetic number, because the mean of its divisors is an integer number (34801680).

Almost surely, 2^134856479 is an apocalyptic number.

134856479 is a deficient number, since it is larger than the sum of its proper divisors (4350241).

134856479 is an equidigital number, since it uses as much as digits as its factorization.

134856479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4350240.

The product of its digits is 725760, while the sum is 47.

The square root of 134856479 is about 11612.7722357756. The cubic root of 134856479 is about 512.8109288337.

The spelling of 134856479 in words is "one hundred thirty-four million, eight hundred fifty-six thousand, four hundred seventy-nine".