180529813133 has 4 divisors (see below), whose sum is σ = 180642857820. Its totient is φ = 180416768448.

The previous prime is 180529813103. The next prime is 180529813181. The reversal of 180529813133 is 331318925081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 331318925081 = 13049 ⋅25390369.

It can be written as a sum of positive squares in 2 ways, for example, as 40835518084 + 139694295049 = 202078^2 + 373757^2 .

It is a cyclic number.

It is not a de Polignac number, because 180529813133 - 2²⁸ = 180261377677 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 (180529813103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56519948 + ... + 56523141.

It is an arithmetic number, because the mean of its divisors is an integer number (45160714455).

Almost surely, 2^180529813133 is an apocalyptic number.

It is an amenable number.

180529813133 is a deficient number, since it is larger than the sum of its proper divisors (113044687).

180529813133 is a wasteful number, since it uses less digits than its factorization.

180529813133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113044686.

The product of its (nonzero) digits is 155520, while the sum is 44.

The spelling of 180529813133 in words is "one hundred eighty billion, five hundred twenty-nine million, eight hundred thirteen thousand, one hundred thirty-three".