1471637985 has 32 divisors (see below), whose sum is σ = 2391811200. Its totient is φ = 772574208.

The previous prime is 1471637903. The next prime is 1471638013. The reversal of 1471637985 is 5897361741.

It is a happy number.

It is not a de Polignac number, because 1471637985 - 2⁹ = 1471637473 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 249642 + ... + 255468.

It is an arithmetic number, because the mean of its divisors is an integer number (74744100).

Almost surely, 2^1471637985 is an apocalyptic number.

1471637985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1471637985 is a deficient number, since it is larger than the sum of its proper divisors (920173215).

1471637985 is a wasteful number, since it uses less digits than its factorization.

1471637985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6097.

The product of its digits is 1270080, while the sum is 51.

The square root of 1471637985 is about 38361.9340622967. The cubic root of 1471637985 is about 1137.4535304447.

The spelling of 1471637985 in words is "one billion, four hundred seventy-one million, six hundred thirty-seven thousand, nine hundred eighty-five".