481571985 has 16 divisors (see below), whose sum is σ = 771266880. Its totient is φ = 256587840.

The previous prime is 481571963. The next prime is 481572017. The reversal of 481571985 is 589175184.

It is a happy number.

It is not a de Polignac number, because 481571985 - 2²¹ = 479474833 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 786 + ... + 31044.

It is an arithmetic number, because the mean of its divisors is an integer number (48204180).

Almost surely, 2^481571985 is an apocalyptic number.

It is an amenable number.

481571985 is a deficient number, since it is larger than the sum of its proper divisors (289694895).

481571985 is a wasteful number, since it uses less digits than its factorization.

481571985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31328.

The product of its digits is 403200, while the sum is 48.

The square root of 481571985 is about 21944.7484606226. The cubic root of 481571985 is about 783.8273347934.

The spelling of 481571985 in words is "four hundred eighty-one million, five hundred seventy-one thousand, nine hundred eighty-five".