134220678 has 16 divisors (see below), whose sum is σ = 284232240. Its totient is φ = 42108416.

The previous prime is 134220659. The next prime is 134220701. The reversal of 134220678 is 876022431.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 657843 + ... + 658046.

It is an arithmetic number, because the mean of its divisors is an integer number (17764515).

Almost surely, 2^134220678 is an apocalyptic number.

134220678 is an abundant number, since it is smaller than the sum of its proper divisors (150011562).

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

134220678 is a wasteful number, since it uses less digits than its factorization.

134220678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315911.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 134220678 is about 11585.3648194608. The cubic root of 134220678 is about 512.0037510915.

The spelling of 134220678 in words is "one hundred thirty-four million, two hundred twenty thousand, six hundred seventy-eight".