180563138 has 12 divisors (see below), whose sum is σ = 315064422. Its totient is φ = 77384160.

The previous prime is 180563129. The next prime is 180563147. The reversal of 180563138 is 831365081.

180563138 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (180563129) and next prime (180563147).

It can be written as a sum of positive squares in only one way, i.e., 180445489 + 117649 = 13433^2 + 343^2 .

It is a junction number, because it is equal to n+sod(n) for n = 180563098 and 180563107.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 921143 + ... + 921338.

Almost surely, 2^180563138 is an apocalyptic number.

180563138 is a deficient number, since it is larger than the sum of its proper divisors (134501284).

180563138 is a wasteful number, since it uses less digits than its factorization.

180563138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842497 (or 1842490 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 180563138 is about 13437.3783901474. The cubic root of 180563138 is about 565.2098189575.

The spelling of 180563138 in words is "one hundred eighty million, five hundred sixty-three thousand, one hundred thirty-eight".