133654664 has 144 divisors (see below), whose sum is σ = 321274800. Its totient is φ = 51891840.

The previous prime is 133654637. The next prime is 133654667. The reversal of 133654664 is 466456331.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (133654667) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3108227 + ... + 3108269.

It is an arithmetic number, because the mean of its divisors is an integer number (2231075).

Almost surely, 2^133654664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133654664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160637400).

133654664 is an abundant number, since it is smaller than the sum of its proper divisors (187620136).

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

133654664 is a wasteful number, since it uses less digits than its factorization.

133654664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 88 counting only the distinct ones).

The product of its digits is 155520, while the sum is 38.

The square root of 133654664 is about 11560.9110367652. The cubic root of 133654664 is about 511.2830235542.

The spelling of 133654664 in words is "one hundred thirty-three million, six hundred fifty-four thousand, six hundred sixty-four".