133533461 has 8 divisors (see below), whose sum is σ = 140179200. Its totient is φ = 127033920.

The previous prime is 133533443. The next prime is 133533473. The reversal of 133533461 is 164335331.

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 133533461 - 2¹⁴ = 133517077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133533061) 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, 34676 + ... + 38333.

It is an arithmetic number, because the mean of its divisors is an integer number (17522400).

Almost surely, 2^133533461 is an apocalyptic number.

It is an amenable number.

133533461 is a deficient number, since it is larger than the sum of its proper divisors (6645739).

133533461 is an equidigital number, since it uses as much as digits as its factorization.

133533461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73099.

The product of its digits is 9720, while the sum is 29.

The square root of 133533461 is about 11555.6679166546. The cubic root of 133533461 is about 511.1284266853.

Adding to 133533461 its reverse (164335331), we get a palindrome (297868792).

The spelling of 133533461 in words is "one hundred thirty-three million, five hundred thirty-three thousand, four hundred sixty-one".