181472441 has 4 divisors (see below), whose sum is σ = 181776000. Its totient is φ = 181168884.

The previous prime is 181472429. The next prime is 181472483. The reversal of 181472441 is 144274181.

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.

It is a cyclic number.

It is not a de Polignac number, because 181472441 - 2¹⁸ = 181210297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 181472398 and 181472407.

It is not an unprimeable number, because it can be changed into a prime (181472411) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 150881 + ... + 152078.

It is an arithmetic number, because the mean of its divisors is an integer number (45444000).

Almost surely, 2^181472441 is an apocalyptic number.

It is an amenable number.

181472441 is a deficient number, since it is larger than the sum of its proper divisors (303559).

181472441 is an equidigital number, since it uses as much as digits as its factorization.

181472441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303558.

The product of its digits is 7168, while the sum is 32.

The square root of 181472441 is about 13471.1707360571. The cubic root of 181472441 is about 566.1570160837.

The spelling of 181472441 in words is "one hundred eighty-one million, four hundred seventy-two thousand, four hundred forty-one".