134581664 has 48 divisors (see below), whose sum is σ = 312592896. Its totient is φ = 55814400.

The previous prime is 134581651. The next prime is 134581669. The reversal of 134581664 is 466185431.

It is a super-2 number, since 2×134581664² = 36224448570017792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (134581669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2747 + ... + 16634.

It is an arithmetic number, because the mean of its divisors is an integer number (6512352).

Almost surely, 2^134581664 is an apocalyptic number.

134581664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

134581664 is an abundant number, since it is smaller than the sum of its proper divisors (178011232).

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

134581664 is a wasteful number, since it uses less digits than its factorization.

134581664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19429 (or 19421 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 134581664 is about 11600.9337555216. The cubic root of 134581664 is about 512.4623509127.

The spelling of 134581664 in words is "one hundred thirty-four million, five hundred eighty-one thousand, six hundred sixty-four".