133418664 has 56 divisors (see below), whose sum is σ = 375084810. Its totient is φ = 44470944.

The previous prime is 133418603. The next prime is 133418687. The reversal of 133418664 is 466814331.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 89302500 + 44116164 = 9450^2 + 6642^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 5607 + ... + 17270.

Almost surely, 2^133418664 is an apocalyptic number.

It is an amenable number.

133418664 is an abundant number, since it is smaller than the sum of its proper divisors (241666146).

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

133418664 is an equidigital number, since it uses as much as digits as its factorization.

133418664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22901 (or 22882 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 133418664 is about 11550.6997190646. The cubic root of 133418664 is about 510.9819145129.

The spelling of 133418664 in words is "one hundred thirty-three million, four hundred eighteen thousand, six hundred sixty-four".