134839689 has 8 divisors (see below), whose sum is σ = 180305760. Its totient is φ = 89633376.

The previous prime is 134839657. The next prime is 134839709. The reversal of 134839689 is 986938431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 134839689 - 2⁵ = 134839657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134839609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63724 + ... + 65805.

It is an arithmetic number, because the mean of its divisors is an integer number (22538220).

Almost surely, 2^134839689 is an apocalyptic number.

It is an amenable number.

134839689 is a deficient number, since it is larger than the sum of its proper divisors (45466071).

134839689 is a wasteful number, since it uses less digits than its factorization.

134839689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129879.

The product of its digits is 1119744, while the sum is 51.

The square root of 134839689 is about 11612.0493023411. The cubic root of 134839689 is about 512.7896458300.

The spelling of 134839689 in words is "one hundred thirty-four million, eight hundred thirty-nine thousand, six hundred eighty-nine".