133532736 has 56 divisors (see below), whose sum is σ = 361943904. Its totient is φ = 43422720.

The previous prime is 133532719. The next prime is 133532761. The reversal of 133532736 is 637235331.

It is a junction number, because it is equal to n+sod(n) for n = 133532697 and 133532706.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 610 + ... + 16353.

It is an arithmetic number, because the mean of its divisors is an integer number (6463284).

Almost surely, 2^133532736 is an apocalyptic number.

133532736 is a gapful number since it is divisible by the number (16) 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 133532736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180971952).

133532736 is an abundant number, since it is smaller than the sum of its proper divisors (228411168).

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

133532736 is a wasteful number, since it uses less digits than its factorization.

133532736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17019 (or 17009 counting only the distinct ones).

The product of its digits is 34020, while the sum is 33.

The square root of 133532736 is about 11555.6365467247. The cubic root of 133532736 is about 511.1275016518.

The spelling of 133532736 in words is "one hundred thirty-three million, five hundred thirty-two thousand, seven hundred thirty-six".