472181215 has 16 divisors (see below), whose sum is σ = 633207456. Its totient is φ = 335027200.

The previous prime is 472181173. The next prime is 472181221. The reversal of 472181215 is 512181274.

It is a de Polignac number, because none of the positive numbers 2^k-472181215 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102442 + ... + 106951.

It is an arithmetic number, because the mean of its divisors is an integer number (39575466).

Almost surely, 2^472181215 is an apocalyptic number.

472181215 is a deficient number, since it is larger than the sum of its proper divisors (161026241).

472181215 is a wasteful number, since it uses less digits than its factorization.

472181215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209450.

The product of its digits is 4480, while the sum is 31.

The square root of 472181215 is about 21729.7311304121. The cubic root of 472181215 is about 778.6989129884.

The spelling of 472181215 in words is "four hundred seventy-two million, one hundred eighty-one thousand, two hundred fifteen".