478286161 has 6 divisors (see below), whose sum is σ = 491563590. Its totient is φ = 465358176.

The previous prime is 478286153. The next prime is 478286201. The reversal of 478286161 is 161682874.

It can be written as a sum of positive squares in 3 ways, for example, as 307827025 + 170459136 = 17545^2 + 13056^2 .

It is not a de Polignac number, because 478286161 - 2³ = 478286153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478286111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 173316 + ... + 176053.

It is an arithmetic number, because the mean of its divisors is an integer number (81927265).

Almost surely, 2^478286161 is an apocalyptic number.

It is an amenable number.

478286161 is a deficient number, since it is larger than the sum of its proper divisors (13277429).

478286161 is an equidigital number, since it uses as much as digits as its factorization.

478286161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349443 (or 349406 counting only the distinct ones).

The product of its digits is 129024, while the sum is 43.

The square root of 478286161 is about 21869.7544796461. The cubic root of 478286161 is about 782.0405485000.

The spelling of 478286161 in words is "four hundred seventy-eight million, two hundred eighty-six thousand, one hundred sixty-one".