180180029 has 4 divisors (see below), whose sum is σ = 185992320. Its totient is φ = 174367740.

The previous prime is 180180023. The next prime is 180180053. The reversal of 180180029 is 920081081.

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: 920081081 = 2087 ⋅440863.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-180180029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 180179983 and 180180010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180180023) 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, 2906099 + ... + 2906160.

It is an arithmetic number, because the mean of its divisors is an integer number (46498080).

Almost surely, 2^180180029 is an apocalyptic number.

It is an amenable number.

180180029 is a deficient number, since it is larger than the sum of its proper divisors (5812291).

180180029 is an equidigital number, since it uses as much as digits as its factorization.

180180029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5812290.

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 180180029 is about 13423.1154729444. The cubic root of 180180029 is about 564.8097921356.

The spelling of 180180029 in words is "one hundred eighty million, one hundred eighty thousand, twenty-nine".