133558480 has 40 divisors (see below), whose sum is σ = 338755104. Its totient is φ = 48566400.

The previous prime is 133558459. The next prime is 133558489. The reversal of 133558480 is 84855331.

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

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133558489) 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, 75006 + ... + 76765.

Almost surely, 2^133558480 is an apocalyptic number.

133558480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133558480 is an abundant number, since it is smaller than the sum of its proper divisors (205196624).

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

133558480 is a wasteful number, since it uses less digits than its factorization.

133558480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151795 (or 151789 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 133558480 is about 11556.7504083112. The cubic root of 133558480 is about 511.1603465837.

The spelling of 133558480 in words is "one hundred thirty-three million, five hundred fifty-eight thousand, four hundred eighty".