478325161 has 2 divisors, whose sum is σ = 478325162. Its totient is φ = 478325160.

The previous prime is 478325143. The next prime is 478325167. The reversal of 478325161 is 161523874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 313998400 + 164326761 = 17720^2 + 12819^2 .

It is a cyclic number.

It is not a de Polignac number, because 478325161 - 2⁷ = 478325033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 478325161.

It is not a weakly prime, because it can be changed into another prime (478325167) 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 as a sum of consecutive naturals, namely, 239162580 + 239162581.

It is an arithmetic number, because the mean of its divisors is an integer number (239162581).

Almost surely, 2^478325161 is an apocalyptic number.

It is an amenable number.

478325161 is a deficient number, since it is larger than the sum of its proper divisors (1).

478325161 is an equidigital number, since it uses as much as digits as its factorization.

478325161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 37.

The square root of 478325161 is about 21870.6461038534. The cubic root of 478325161 is about 782.0618040822.

The spelling of 478325161 in words is "four hundred seventy-eight million, three hundred twenty-five thousand, one hundred sixty-one".