134788028 has 6 divisors (see below), whose sum is σ = 235879056. Its totient is φ = 67394012.

The previous prime is 134787997. The next prime is 134788051. The reversal of 134788028 is 820887431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16848500 + ... + 16848507.

It is an arithmetic number, because the mean of its divisors is an integer number (39313176).

Almost surely, 2^134788028 is an apocalyptic number.

It is an amenable number.

134788028 is a deficient number, since it is larger than the sum of its proper divisors (101091028).

134788028 is a wasteful number, since it uses less digits than its factorization.

134788028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33697011 (or 33697009 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 134788028 is about 11609.8246326118. The cubic root of 134788028 is about 512.7241492639.

The spelling of 134788028 in words is "one hundred thirty-four million, seven hundred eighty-eight thousand, twenty-eight".