133356001 has 4 divisors (see below), whose sum is σ = 139154112. Its totient is φ = 127557892.

The previous prime is 133355983. The next prime is 133356019. The reversal of 133356001 is 100653331.

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, and also an emirpimes, since its reverse is a distinct semiprime: 100653331 = 5309 ⋅18959.

It is an interprime number because it is at equal distance from previous prime (133355983) and next prime (133356019).

It is a cyclic number.

It is not a de Polignac number, because 133356001 - 2⁹ = 133355489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133356031) 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, 2899021 + ... + 2899066.

It is an arithmetic number, because the mean of its divisors is an integer number (34788528).

Almost surely, 2^133356001 is an apocalyptic number.

It is an amenable number.

133356001 is a deficient number, since it is larger than the sum of its proper divisors (5798111).

133356001 is an equidigital number, since it uses as much as digits as its factorization.

133356001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5798110.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 133356001 is about 11547.9868808377. The cubic root of 133356001 is about 510.9019040332.

The spelling of 133356001 in words is "one hundred thirty-three million, three hundred fifty-six thousand, one".