133522480 has 80 divisors (see below), whose sum is σ = 382100544. Its totient is φ = 42255360.

The previous prime is 133522469. The next prime is 133522483. The reversal of 133522480 is 84225331.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (133522483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1891 + ... + 16450.

Almost surely, 2^133522480 is an apocalyptic number.

133522480 is a gapful number since it is divisible by the number (10) 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 133522480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191050272).

133522480 is an abundant number, since it is smaller than the sum of its proper divisors (248578064).

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

133522480 is a wasteful number, since it uses less digits than its factorization.

133522480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18374 (or 18368 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 133522480 is about 11555.1927720830. The cubic root of 133522480 is about 511.1144155776.

The spelling of 133522480 in words is "one hundred thirty-three million, five hundred twenty-two thousand, four hundred eighty".