133533005 has 8 divisors (see below), whose sum is σ = 160452600. Its totient is φ = 106684416.

The previous prime is 133532983. The next prime is 133533041. The reversal of 133533005 is 500335331.

It can be written as a sum of positive squares in 4 ways, for example, as 499849 + 133033156 = 707^2 + 11534^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 133533005 - 2¹² = 133528909 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 13520 + ... + 21209.

It is an arithmetic number, because the mean of its divisors is an integer number (20056575).

Almost surely, 2^133533005 is an apocalyptic number.

It is an amenable number.

133533005 is a deficient number, since it is larger than the sum of its proper divisors (26919595).

133533005 is an equidigital number, since it uses as much as digits as its factorization.

133533005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35503.

The product of its (nonzero) digits is 2025, while the sum is 23.

The square root of 133533005 is about 11555.6481860604. The cubic root of 133533005 is about 511.1278448715.

Adding to 133533005 its reverse (500335331), we get a palindrome (633868336).

The spelling of 133533005 in words is "one hundred thirty-three million, five hundred thirty-three thousand, five".