133205001 has 8 divisors (see below), whose sum is σ = 177832704. Its totient is φ = 88690320.

The previous prime is 133204999. The next prime is 133205011. The reversal of 133205001 is 100502331.

It is a happy number.

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

It is not a de Polignac number, because 133205001 - 2¹ = 133204999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133205011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25465 + ... + 30246.

It is an arithmetic number, because the mean of its divisors is an integer number (22229088).

Almost surely, 2^133205001 is an apocalyptic number.

It is an amenable number.

133205001 is a deficient number, since it is larger than the sum of its proper divisors (44627703).

133205001 is an equidigital number, since it uses as much as digits as its factorization.

133205001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56511.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 133205001 is about 11541.4470929776. The cubic root of 133205001 is about 510.7089985197.

Adding to 133205001 its reverse (100502331), we get a palindrome (233707332).

The spelling of 133205001 in words is "one hundred thirty-three million, two hundred five thousand, one".