134681028 has 12 divisors (see below), whose sum is σ = 314255760. Its totient is φ = 44893672.

The previous prime is 134680981. The next prime is 134681069. The reversal of 134681028 is 820186431.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 134681028.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5611698 + ... + 5611721.

It is an arithmetic number, because the mean of its divisors is an integer number (26187980).

Almost surely, 2^134681028 is an apocalyptic number.

It is an amenable number.

134681028 is an abundant number, since it is smaller than the sum of its proper divisors (179574732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

134681028 is a wasteful number, since it uses less digits than its factorization.

134681028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11223426 (or 11223424 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 134681028 is about 11605.2155516388. The cubic root of 134681028 is about 512.5884398634.

The spelling of 134681028 in words is "one hundred thirty-four million, six hundred eighty-one thousand, twenty-eight".