472133209 has 8 divisors (see below), whose sum is σ = 485523720. Its totient is φ = 458775936.

The previous prime is 472133203. The next prime is 472133227. The reversal of 472133209 is 902331274.

It can be written as a sum of positive squares in 4 ways, for example, as 280227600 + 191905609 = 16740^2 + 13853^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 472133209 - 2²¹ = 470036057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (472133203) 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 7 ways as a sum of consecutive naturals, for example, 22047 + ... + 37819.

It is an arithmetic number, because the mean of its divisors is an integer number (60690465).

Almost surely, 2^472133209 is an apocalyptic number.

It is an amenable number.

472133209 is a deficient number, since it is larger than the sum of its proper divisors (13390511).

472133209 is a wasteful number, since it uses less digits than its factorization.

472133209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16619.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 472133209 is about 21728.6264867340. The cubic root of 472133209 is about 778.6725223529.

The spelling of 472133209 in words is "four hundred seventy-two million, one hundred thirty-three thousand, two hundred nine".