180143029 has 4 divisors (see below), whose sum is σ = 196519680. Its totient is φ = 163766380.

The previous prime is 180143017. The next prime is 180143071. The reversal of 180143029 is 920341081.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 920341081 = 11 ⋅83667371.

It is a cyclic number.

It is not a de Polignac number, because 180143029 - 2¹¹ = 180140981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 180142988 and 180143006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180143129) 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, 8188309 + ... + 8188330.

It is an arithmetic number, because the mean of its divisors is an integer number (49129920).

Almost surely, 2^180143029 is an apocalyptic number.

It is an amenable number.

180143029 is a deficient number, since it is larger than the sum of its proper divisors (16376651).

180143029 is a wasteful number, since it uses less digits than its factorization.

180143029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16376650.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 180143029 is about 13421.7371826452. The cubic root of 180143029 is about 564.7711282262.

The spelling of 180143029 in words is "one hundred eighty million, one hundred forty-three thousand, twenty-nine".