478162313 has 2 divisors, whose sum is σ = 478162314. Its totient is φ = 478162312.

The previous prime is 478162297. The next prime is 478162331. The reversal of 478162313 is 313261874.

Together with next prime (478162331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 266081344 + 212080969 = 16312^2 + 14563^2 .

It is a cyclic number.

It is not a de Polignac number, because 478162313 - 2⁴ = 478162297 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (478162393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239081156 + 239081157.

It is an arithmetic number, because the mean of its divisors is an integer number (239081157).

Almost surely, 2^478162313 is an apocalyptic number.

It is an amenable number.

478162313 is a deficient number, since it is larger than the sum of its proper divisors (1).

478162313 is an equidigital number, since it uses as much as digits as its factorization.

478162313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 35.

The square root of 478162313 is about 21866.9228059185. The cubic root of 478162313 is about 781.9730418294.

The spelling of 478162313 in words is "four hundred seventy-eight million, one hundred sixty-two thousand, three hundred thirteen".