134784018 has 24 divisors (see below), whose sum is σ = 293120256. Its totient is φ = 44760600.

The previous prime is 134784011. The next prime is 134784073. The reversal of 134784018 is 810487431.

It is not an unprimeable number, because it can be changed into a prime (134784011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8938 + ... + 18693.

It is an arithmetic number, because the mean of its divisors is an integer number (12213344).

Almost surely, 2^134784018 is an apocalyptic number.

134784018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

134784018 is an abundant number, since it is smaller than the sum of its proper divisors (158336238).

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

134784018 is a wasteful number, since it uses less digits than its factorization.

134784018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27910 (or 27907 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 134784018 is about 11609.6519327670. The cubic root of 134784018 is about 512.7190646278.

The spelling of 134784018 in words is "one hundred thirty-four million, seven hundred eighty-four thousand, eighteen".