180641236 has 6 divisors (see below), whose sum is σ = 316122170. Its totient is φ = 90320616.

The previous prime is 180641233. The next prime is 180641249. The reversal of 180641236 is 632146081.

It is a happy number.

180641236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 175827600 + 4813636 = 13260^2 + 2194^2 .

It is a super-2 number, since 2×180641236² = 65262512287215392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 180641198 and 180641207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180641233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22580151 + ... + 22580158.

Almost surely, 2^180641236 is an apocalyptic number.

It is an amenable number.

180641236 is a deficient number, since it is larger than the sum of its proper divisors (135480934).

180641236 is a wasteful number, since it uses less digits than its factorization.

180641236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45160313 (or 45160311 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 180641236 is about 13440.2840743788. The cubic root of 180641236 is about 565.2912962629.

The spelling of 180641236 in words is "one hundred eighty million, six hundred forty-one thousand, two hundred thirty-six".