133360256 has 64 divisors (see below), whose sum is σ = 280687680. Its totient is φ = 62988288.

The previous prime is 133360219. The next prime is 133360261. The reversal of 133360256 is 652063331.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285335 + ... + 285801.

It is an arithmetic number, because the mean of its divisors is an integer number (4385745).

Almost surely, 2^133360256 is an apocalyptic number.

133360256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133360256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140343840).

133360256 is an abundant number, since it is smaller than the sum of its proper divisors (147327424).

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

133360256 is an equidigital number, since it uses as much as digits as its factorization.

133360256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601 (or 589 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 29.

The square root of 133360256 is about 11548.1711106131. The cubic root of 133360256 is about 510.9073377706.

The spelling of 133360256 in words is "one hundred thirty-three million, three hundred sixty thousand, two hundred fifty-six".