133481360 has 20 divisors (see below), whose sum is σ = 310344348. Its totient is φ = 53392512.

The previous prime is 133481357. The next prime is 133481371. The reversal of 133481360 is 63184331.

It can be written as a sum of positive squares in 2 ways, for example, as 91853056 + 41628304 = 9584^2 + 6452^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 834179 + ... + 834338.

Almost surely, 2^133481360 is an apocalyptic number.

133481360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133481360 is an abundant number, since it is smaller than the sum of its proper divisors (176862988).

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

133481360 is a wasteful number, since it uses less digits than its factorization.

133481360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1668530 (or 1668524 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 133481360 is about 11553.4133484438. The cubic root of 133481360 is about 511.0619420600.

The spelling of 133481360 in words is "one hundred thirty-three million, four hundred eighty-one thousand, three hundred sixty".