180530002 has 4 divisors (see below), whose sum is σ = 270795006. Its totient is φ = 90265000.

The previous prime is 180529991. The next prime is 180530033. The reversal of 180530002 is 200035081.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200035081 = 389 ⋅514229.

It can be written as a sum of positive squares in only one way, i.e., 156725361 + 23804641 = 12519^2 + 4879^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 45132499 + ... + 45132502.

Almost surely, 2^180530002 is an apocalyptic number.

180530002 is a deficient number, since it is larger than the sum of its proper divisors (90265004).

180530002 is an equidigital number, since it uses as much as digits as its factorization.

180530002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90265003.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 180530002 is about 13436.1453549744. The cubic root of 180530002 is about 565.1752420618.

Adding to 180530002 its reverse (200035081), we get a palindrome (380565083).

The spelling of 180530002 in words is "one hundred eighty million, five hundred thirty thousand, two".