134809578 has 24 divisors (see below), whose sum is σ = 304787808. Its totient is φ = 42982632.

The previous prime is 134809559. The next prime is 134809589. The reversal of 134809578 is 875908431.

134809578 is a `hidden beast` number, since 13 + 480 + 95 + 78 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 162400 + ... + 163227.

It is an arithmetic number, because the mean of its divisors is an integer number (12699492).

Almost surely, 2^134809578 is an apocalyptic number.

134809578 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

134809578 is an abundant number, since it is smaller than the sum of its proper divisors (169978230).

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

134809578 is a wasteful number, since it uses less digits than its factorization.

134809578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325658 (or 325655 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 134809578 is about 11610.7526887795. The cubic root of 134809578 is about 512.7514727010.

The spelling of 134809578 in words is "one hundred thirty-four million, eight hundred nine thousand, five hundred seventy-eight".