133380560 has 40 divisors (see below), whose sum is σ = 318498216. Its totient is φ = 51909120.

The previous prime is 133380557. The next prime is 133380581. The reversal of 133380560 is 65083331.

It can be written as a sum of positive squares in 4 ways, for example, as 68029504 + 65351056 = 8248^2 + 8084^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

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, 19571 + ... + 25490.

Almost surely, 2^133380560 is an apocalyptic number.

133380560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133380560 is an abundant number, since it is smaller than the sum of its proper divisors (185117656).

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

133380560 is a wasteful number, since it uses less digits than its factorization.

133380560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45111 (or 45105 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 133380560 is about 11549.0501773955. The cubic root of 133380560 is about 510.9332648759.

The spelling of 133380560 in words is "one hundred thirty-three million, three hundred eighty thousand, five hundred sixty".