478102249 has 2 divisors, whose sum is σ = 478102250. Its totient is φ = 478102248.

The previous prime is 478102213. The next prime is 478102259. The reversal of 478102249 is 942201874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 362217024 + 115885225 = 19032^2 + 10765^2 .

It is a cyclic number.

It is not a de Polignac number, because 478102249 - 2¹⁷ = 477971177 is a prime.

It is not a weakly prime, because it can be changed into another prime (478102259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239051124 + 239051125.

It is an arithmetic number, because the mean of its divisors is an integer number (239051125).

Almost surely, 2^478102249 is an apocalyptic number.

It is an amenable number.

478102249 is a deficient number, since it is larger than the sum of its proper divisors (1).

478102249 is an equidigital number, since it uses as much as digits as its factorization.

478102249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 478102249 is about 21865.5493642396. The cubic root of 478102249 is about 781.9402981395.

The spelling of 478102249 in words is "four hundred seventy-eight million, one hundred two thousand, two hundred forty-nine".