133106005 has 16 divisors (see below), whose sum is σ = 170002800. Its totient is φ = 99699712.

The previous prime is 133106003. The next prime is 133106009. The reversal of 133106005 is 500601331.

It can be written as a sum of positive squares in 8 ways, for example, as 19000881 + 114105124 = 4359^2 + 10682^2 .

It is a cyclic number.

It is not a de Polignac number, because 133106005 - 2¹ = 133106003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133106003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12771 + ... + 20719.

It is an arithmetic number, because the mean of its divisors is an integer number (10625175).

Almost surely, 2^133106005 is an apocalyptic number.

It is an amenable number.

133106005 is a deficient number, since it is larger than the sum of its proper divisors (36896795).

133106005 is a wasteful number, since it uses less digits than its factorization.

133106005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8168.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 133106005 is about 11537.1575788840. The cubic root of 133106005 is about 510.5824500230.

Adding to 133106005 its reverse (500601331), we get a palindrome (633707336).

The spelling of 133106005 in words is "one hundred thirty-three million, one hundred six thousand, five".