133012205 has 8 divisors (see below), whose sum is σ = 161801592. Its totient is φ = 104951808.

The previous prime is 133012189. The next prime is 133012207. The reversal of 133012205 is 502210331.

It can be written as a sum of positive squares in 4 ways, for example, as 2116 + 133010089 = 46^2 + 11533^2 .

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

It is not a de Polignac number, because 133012205 - 2⁴ = 133012189 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 (133012207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181844 + ... + 182573.

It is an arithmetic number, because the mean of its divisors is an integer number (20225199).

Almost surely, 2^133012205 is an apocalyptic number.

It is an amenable number.

133012205 is a deficient number, since it is larger than the sum of its proper divisors (28789387).

133012205 is an equidigital number, since it uses as much as digits as its factorization.

133012205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364495.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 133012205 is about 11533.0917363906. The cubic root of 133012205 is about 510.4624857679.

Adding to 133012205 its reverse (502210331), we get a palindrome (635222536).

The spelling of 133012205 in words is "one hundred thirty-three million, twelve thousand, two hundred five".