472181 has 4 divisors (see below), whose sum is σ = 475500. Its totient is φ = 468864.

The previous prime is 472163. The next prime is 472189. The reversal of 472181 is 181274.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 217156 + 255025 = 466^2 + 505^2 .

It is a cyclic number.

It is not a de Polignac number, because 472181 - 2¹⁸ = 210037 is a prime.

It is a super-2 number, since 2×472181² = 445909793522, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 472181.

It is not an unprimeable number, because it can be changed into a prime (472189) 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 3 ways as a sum of consecutive naturals, for example, 1436 + ... + 1733.

It is an arithmetic number, because the mean of its divisors is an integer number (118875).

2⁴⁷²¹⁸¹ is an apocalyptic number.

It is an amenable number.

472181 is a deficient number, since it is larger than the sum of its proper divisors (3319).

472181 is a wasteful number, since it uses less digits than its factorization.

472181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3318.

The product of its digits is 448, while the sum is 23.

The square root of 472181 is about 687.1542767094. The cubic root of 472181 is about 77.8698794799.

The spelling of 472181 in words is "four hundred seventy-two thousand, one hundred eighty-one".