133481480 has 32 divisors (see below), whose sum is σ = 327637440. Its totient is φ = 48538560.

The previous prime is 133481473. The next prime is 133481483. The reversal of 133481480 is 84184331.

It is not an unprimeable number, because it can be changed into a prime (133481483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151244 + ... + 152123.

It is an arithmetic number, because the mean of its divisors is an integer number (10238670).

Almost surely, 2^133481480 is an apocalyptic number.

133481480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133481480 is an abundant number, since it is smaller than the sum of its proper divisors (194155960).

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

133481480 is a wasteful number, since it uses less digits than its factorization.

133481480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303389 (or 303385 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 133481480 is about 11553.4185417131. The cubic root of 133481480 is about 511.0620952085.

The spelling of 133481480 in words is "one hundred thirty-three million, four hundred eighty-one thousand, four hundred eighty".