133489356 has 96 divisors (see below), whose sum is σ = 418242048. Its totient is φ = 32002560.

The previous prime is 133489337. The next prime is 133489397. The reversal of 133489356 is 653984331.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6456 + ... + 17568.

It is an arithmetic number, because the mean of its divisors is an integer number (4356688).

Almost surely, 2^133489356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133489356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209121024).

133489356 is an abundant number, since it is smaller than the sum of its proper divisors (284752692).

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

133489356 is a wasteful number, since it uses less digits than its factorization.

133489356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11151 (or 11149 counting only the distinct ones).

The product of its digits is 233280, while the sum is 42.

The square root of 133489356 is about 11553.7593881818. The cubic root of 133489356 is about 511.0721466551.

The spelling of 133489356 in words is "one hundred thirty-three million, four hundred eighty-nine thousand, three hundred fifty-six".