180441146 has 16 divisors (see below), whose sum is σ = 276189480. Its totient is φ = 88396800.

The previous prime is 180441143. The next prime is 180441197. The reversal of 180441146 is 641144081.

It can be written as a sum of positive squares in 4 ways, for example, as 162843121 + 17598025 = 12761^2 + 4195^2 .

It is not an unprimeable number, because it can be changed into a prime (180441143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14990 + ... + 24198.

Almost surely, 2^180441146 is an apocalyptic number.

180441146 is a deficient number, since it is larger than the sum of its proper divisors (95748334).

180441146 is a wasteful number, since it uses less digits than its factorization.

180441146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9409.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 180441146 is about 13432.8383448920. The cubic root of 180441146 is about 565.0825013313.

The spelling of 180441146 in words is "one hundred eighty million, four hundred forty-one thousand, one hundred forty-six".