133405382 has 16 divisors (see below), whose sum is σ = 227791872. Its totient is φ = 58002120.

The previous prime is 133405381. The next prime is 133405397. The reversal of 133405382 is 283504331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133405381) 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 7 ways as a sum of consecutive naturals, for example, 131318 + ... + 132329.

It is an arithmetic number, because the mean of its divisors is an integer number (14236992).

Almost surely, 2^133405382 is an apocalyptic number.

133405382 is a deficient number, since it is larger than the sum of its proper divisors (94386490).

133405382 is a wasteful number, since it uses less digits than its factorization.

133405382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263683.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 133405382 is about 11550.1247612309. The cubic root of 133405382 is about 510.9649576474.

The spelling of 133405382 in words is "one hundred thirty-three million, four hundred five thousand, three hundred eighty-two".