478162331 has 2 divisors, whose sum is σ = 478162332. Its totient is φ = 478162330.

The previous prime is 478162313. The next prime is 478162339. The reversal of 478162331 is 133261874.

Together with previous prime (478162313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478162331 is a prime.

It is a super-2 number, since 2×478162331² = 457278429574707122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 478162291 and 478162300.

It is not a weakly prime, because it can be changed into another prime (478162339) 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, 239081165 + 239081166.

It is an arithmetic number, because the mean of its divisors is an integer number (239081166).

Almost surely, 2^478162331 is an apocalyptic number.

478162331 is a deficient number, since it is larger than the sum of its proper divisors (1).

478162331 is an equidigital number, since it uses as much as digits as its factorization.

478162331 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 478162331 is about 21866.9232174991. The cubic root of 478162331 is about 781.9730516416.

The spelling of 478162331 in words is "four hundred seventy-eight million, one hundred sixty-two thousand, three hundred thirty-one".