134661728 has 12 divisors (see below), whose sum is σ = 265115340. Its totient is φ = 67330848.

The previous prime is 134661727. The next prime is 134661739. The reversal of 134661728 is 827166431.

It is a junction number, because it is equal to n+sod(n) for n = 134661691 and 134661700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134661727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2104058 + ... + 2104121.

It is an arithmetic number, because the mean of its divisors is an integer number (22092945).

Almost surely, 2^134661728 is an apocalyptic number.

It is an amenable number.

134661728 is a deficient number, since it is larger than the sum of its proper divisors (130453612).

134661728 is an equidigital number, since it uses as much as digits as its factorization.

134661728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4208189 (or 4208181 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 134661728 is about 11604.3839991617. The cubic root of 134661728 is about 512.5639537878.

The spelling of 134661728 in words is "one hundred thirty-four million, six hundred sixty-one thousand, seven hundred twenty-eight".