180100133 has 4 divisors (see below), whose sum is σ = 182123820. Its totient is φ = 178076448.

The previous prime is 180100061. The next prime is 180100139. The reversal of 180100133 is 331001081.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 121837444 + 58262689 = 11038^2 + 7633^2 .

It is a cyclic number.

It is not a de Polignac number, because 180100133 - 2¹⁰ = 180099109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180100139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1011710 + ... + 1011887.

It is an arithmetic number, because the mean of its divisors is an integer number (45530955).

Almost surely, 2^180100133 is an apocalyptic number.

It is an amenable number.

180100133 is a deficient number, since it is larger than the sum of its proper divisors (2023687).

180100133 is an equidigital number, since it uses as much as digits as its factorization.

180100133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023686.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 180100133 is about 13420.1390827368. The cubic root of 180100133 is about 564.7262965432.

The spelling of 180100133 in words is "one hundred eighty million, one hundred thousand, one hundred thirty-three".