180522143 has 4 divisors (see below), whose sum is σ = 180584400. Its totient is φ = 180459888.

The previous prime is 180522131. The next prime is 180522151. The reversal of 180522143 is 341225081.

180522143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341225081 = 43 ⋅7935467.

It is a cyclic number.

It is not a de Polignac number, because 180522143 - 2⁶ = 180522079 is a prime.

It is a super-2 number, since 2×180522143² = 65176488226624898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180522103) 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, 26555 + ... + 32652.

It is an arithmetic number, because the mean of its divisors is an integer number (45146100).

Almost surely, 2^180522143 is an apocalyptic number.

180522143 is a deficient number, since it is larger than the sum of its proper divisors (62257).

180522143 is an equidigital number, since it uses as much as digits as its factorization.

180522143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62256.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 180522143 is about 13435.8528944016. The cubic root of 180522143 is about 565.1670406980.

The spelling of 180522143 in words is "one hundred eighty million, five hundred twenty-two thousand, one hundred forty-three".