133005281105 has 32 divisors (see below), whose sum is σ = 170822330784. Its totient is φ = 99063300096.

The previous prime is 133005281093. The next prime is 133005281113. The reversal of 133005281105 is 501182500331.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 60945784384 + 72059496721 = 246872^2 + 268439^2 .

It is a cyclic number.

It is not a de Polignac number, because 133005281105 - 2⁴ = 133005281089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31271159 + ... + 31275411.

It is an arithmetic number, because the mean of its divisors is an integer number (5338197837).

Almost surely, 2^133005281105 is an apocalyptic number.

It is an amenable number.

133005281105 is a deficient number, since it is larger than the sum of its proper divisors (37817049679).

133005281105 is a wasteful number, since it uses less digits than its factorization.

133005281105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8165.

The product of its (nonzero) digits is 3600, while the sum is 29.

Adding to 133005281105 its reverse (501182500331), we get a palindrome (634187781436).

The spelling of 133005281105 in words is "one hundred thirty-three billion, five million, two hundred eighty-one thousand, one hundred five".