133111345 has 16 divisors (see below), whose sum is σ = 161853120. Its totient is φ = 105084864.

The previous prime is 133111331. The next prime is 133111369. The reversal of 133111345 is 543111331.

It is a cyclic number.

It is not a de Polignac number, because 133111345 - 2²³ = 124722737 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254254 + ... + 254776.

It is an arithmetic number, because the mean of its divisors is an integer number (10115820).

Almost surely, 2^133111345 is an apocalyptic number.

It is an amenable number.

133111345 is a deficient number, since it is larger than the sum of its proper divisors (28741775).

133111345 is a wasteful number, since it uses less digits than its factorization.

133111345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104.

The product of its digits is 540, while the sum is 22.

The square root of 133111345 is about 11537.3890027163. The cubic root of 133111345 is about 510.5892778487.

Adding to 133111345 its reverse (543111331), we get a palindrome (676222676).

The spelling of 133111345 in words is "one hundred thirty-three million, one hundred eleven thousand, three hundred forty-five".