133043407 has 8 divisors (see below), whose sum is σ = 154627200. Its totient is φ = 112104024.

The previous prime is 133043381. The next prime is 133043423. The reversal of 133043407 is 704340331.

It is a happy number.

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 133043407 - 2¹⁵ = 133010639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133043497) 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, 160657 + ... + 161482.

It is an arithmetic number, because the mean of its divisors is an integer number (19328400).

Almost surely, 2^133043407 is an apocalyptic number.

133043407 is a deficient number, since it is larger than the sum of its proper divisors (21583793).

133043407 is an equidigital number, since it uses as much as digits as its factorization.

133043407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322205.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 133043407 is about 11534.4443732674. Note that the first 3 decimals coincide. The cubic root of 133043407 is about 510.5023974066.

Adding to 133043407 its reverse (704340331), we get a palindrome (837383738).

The spelling of 133043407 in words is "one hundred thirty-three million, forty-three thousand, four hundred seven".