133340045 has 16 divisors (see below), whose sum is σ = 165563568. Its totient is φ = 103011840.

The previous prime is 133340023. The next prime is 133340047. The reversal of 133340045 is 540043331.

It can be written as a sum of positive squares in 8 ways, for example, as 13853284 + 119486761 = 3722^2 + 10931^2 .

It is not a de Polignac number, because 133340045 - 2¹⁰ = 133339021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 133340045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133340047) by changing a digit.

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, 22715 + ... + 27975.

It is an arithmetic number, because the mean of its divisors is an integer number (10347723).

Almost surely, 2^133340045 is an apocalyptic number.

It is an amenable number.

133340045 is a deficient number, since it is larger than the sum of its proper divisors (32223523).

133340045 is a wasteful number, since it uses less digits than its factorization.

133340045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5440.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 133340045 is about 11547.2960038270. The cubic root of 133340045 is about 510.8815268077.

Adding to 133340045 its reverse (540043331), we get a palindrome (673383376).

The spelling of 133340045 in words is "one hundred thirty-three million, three hundred forty thousand, forty-five".