133732272 has 20 divisors (see below), whose sum is σ = 345475160. Its totient is φ = 44577408.

The previous prime is 133732259. The next prime is 133732273. The reversal of 133732272 is 272237331.

It is not an unprimeable number, because it can be changed into a prime (133732273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1392997 + ... + 1393092.

It is an arithmetic number, because the mean of its divisors is an integer number (17273758).

Almost surely, 2^133732272 is an apocalyptic number.

133732272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133732272 is an abundant number, since it is smaller than the sum of its proper divisors (211742888).

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

133732272 is a wasteful number, since it uses less digits than its factorization.

133732272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2786100 (or 2786094 counting only the distinct ones).

The product of its digits is 10584, while the sum is 30.

The square root of 133732272 is about 11564.2670325447. The cubic root of 133732272 is about 511.3819650452.

The spelling of 133732272 in words is "one hundred thirty-three million, seven hundred thirty-two thousand, two hundred seventy-two".