133564284 has 36 divisors (see below), whose sum is σ = 385853104. Its totient is φ = 38161152.

The previous prime is 133564283. The next prime is 133564309. The reversal of 133564284 is 482465331.

133564284 is a `hidden beast` number, since 1 + 3 + 3 + 5 + 642 + 8 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133564283) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 264757 + ... + 265260.

Almost surely, 2^133564284 is an apocalyptic number.

133564284 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

133564284 is an abundant number, since it is smaller than the sum of its proper divisors (252288820).

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

133564284 is a wasteful number, since it uses less digits than its factorization.

133564284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530034 (or 530029 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 133564284 is about 11557.0015142337. The cubic root of 133564284 is about 511.1677509100.

The spelling of 133564284 in words is "one hundred thirty-three million, five hundred sixty-four thousand, two hundred eighty-four".