133381934 has 8 divisors (see below), whose sum is σ = 228654768. Its totient is φ = 57163680.

The previous prime is 133381931. The next prime is 133381943. The reversal of 133381934 is 439183331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 133381894 and 133381903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133381931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4763627 + ... + 4763654.

It is an arithmetic number, because the mean of its divisors is an integer number (28581846).

Almost surely, 2^133381934 is an apocalyptic number.

133381934 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

133381934 is a deficient number, since it is larger than the sum of its proper divisors (95272834).

133381934 is an equidigital number, since it uses as much as digits as its factorization.

133381934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9527290.

The product of its digits is 23328, while the sum is 35.

The square root of 133381934 is about 11549.1096626537. The cubic root of 133381934 is about 510.9350193042.

The spelling of 133381934 in words is "one hundred thirty-three million, three hundred eighty-one thousand, nine hundred thirty-four".