133403001 has 4 divisors (see below), whose sum is σ = 177870672. Its totient is φ = 88935332.

The previous prime is 133402991. The next prime is 133403003. The reversal of 133403001 is 100304331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 133403001 - 2¹⁰ = 133401977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133403003) 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 3 ways as a sum of consecutive naturals, for example, 22233831 + ... + 22233836.

It is an arithmetic number, because the mean of its divisors is an integer number (44467668).

Almost surely, 2^133403001 is an apocalyptic number.

It is an amenable number.

133403001 is a deficient number, since it is larger than the sum of its proper divisors (44467671).

133403001 is an equidigital number, since it uses as much as digits as its factorization.

133403001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44467670.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 133403001 is about 11550.0216882913. The cubic root of 133403001 is about 510.9619177531.

Adding to 133403001 its reverse (100304331), we get a palindrome (233707332).

The spelling of 133403001 in words is "one hundred thirty-three million, four hundred three thousand, one".