134666020 has 24 divisors (see below), whose sum is σ = 286675704. Its totient is φ = 53127936.

The previous prime is 134666003. The next prime is 134666029. The reversal of 134666020 is 20666431.

It can be written as a sum of positive squares in 4 ways, for example, as 11943936 + 122722084 = 3456^2 + 11078^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 134666020.

It is not an unprimeable number, because it can be changed into a prime (134666029) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 44659 + ... + 47578.

It is an arithmetic number, because the mean of its divisors is an integer number (11944821).

Almost surely, 2^134666020 is an apocalyptic number.

134666020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134666020 is an abundant number, since it is smaller than the sum of its proper divisors (152009684).

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

134666020 is a wasteful number, since it uses less digits than its factorization.

134666020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92319 (or 92317 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 134666020 is about 11604.5689277974. The cubic root of 134666020 is about 512.5693992873.

The spelling of 134666020 in words is "one hundred thirty-four million, six hundred sixty-six thousand, twenty".