134729081 has 4 divisors (see below), whose sum is σ = 134752500. Its totient is φ = 134705664.

The previous prime is 134729071. The next prime is 134729129. The reversal of 134729081 is 180927431.

134729081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 85729081 + 49000000 = 9259^2 + 7000^2 .

It is a cyclic number.

It is not a de Polignac number, because 134729081 - 2²² = 130534777 is a prime.

It is a super-2 number, since 2×134729081² = 36303850534209122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134729011) 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, 3545 + ... + 16793.

It is an arithmetic number, because the mean of its divisors is an integer number (33688125).

Almost surely, 2^134729081 is an apocalyptic number.

It is an amenable number.

134729081 is a deficient number, since it is larger than the sum of its proper divisors (23419).

134729081 is a wasteful number, since it uses less digits than its factorization.

134729081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23418.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 134729081 is about 11607.2856861542. The cubic root of 134729081 is about 512.6493949556.

The spelling of 134729081 in words is "one hundred thirty-four million, seven hundred twenty-nine thousand, eighty-one".