133801205 has 8 divisors (see below), whose sum is σ = 160635552. Its totient is φ = 106991568.

The previous prime is 133801201. The next prime is 133801207. The reversal of 133801205 is 502108331.

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 133801205 - 2² = 133801201 is a prime.

It is a super-3 number, since 3×133801205³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133801201) 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, 9242 + ... + 18788.

It is an arithmetic number, because the mean of its divisors is an integer number (20079444).

Almost surely, 2^133801205 is an apocalyptic number.

It is an amenable number.

133801205 is a deficient number, since it is larger than the sum of its proper divisors (26834347).

133801205 is an equidigital number, since it uses as much as digits as its factorization.

133801205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12355.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 133801205 is about 11567.2470795778. The cubic root of 133801205 is about 511.4698147901.

Adding to 133801205 its reverse (502108331), we get a palindrome (635909536).

The spelling of 133801205 in words is "one hundred thirty-three million, eight hundred one thousand, two hundred five".