133683270 has 96 divisors (see below), whose sum is σ = 375860736. Its totient is φ = 30340800.

The previous prime is 133683241. The next prime is 133683271. The reversal of 133683270 is 72386331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133683271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 309955 + ... + 310385.

It is an arithmetic number, because the mean of its divisors is an integer number (3915216).

Almost surely, 2^133683270 is an apocalyptic number.

133683270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 133683270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187930368).

133683270 is an abundant number, since it is smaller than the sum of its proper divisors (242177466).

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

133683270 is a wasteful number, since it uses less digits than its factorization.

133683270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666 (or 659 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 133683270 is about 11562.1481568089. The cubic root of 133683270 is about 511.3194974499.

The spelling of 133683270 in words is "one hundred thirty-three million, six hundred eighty-three thousand, two hundred seventy".