478911143 has 2 divisors, whose sum is σ = 478911144. Its totient is φ = 478911142.

The previous prime is 478911113. The next prime is 478911149. The reversal of 478911143 is 341119874.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 478911143 - 2¹² = 478907047 is a prime.

It is a Sophie Germain prime.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 478911097 and 478911106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478911149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239455571 + 239455572.

It is an arithmetic number, because the mean of its divisors is an integer number (239455572).

Almost surely, 2^478911143 is an apocalyptic number.

478911143 is a deficient number, since it is larger than the sum of its proper divisors (1).

478911143 is an equidigital number, since it uses as much as digits as its factorization.

478911143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 38.

The square root of 478911143 is about 21884.0385441079. The cubic root of 478911143 is about 782.3810340157.

The spelling of 478911143 in words is "four hundred seventy-eight million, nine hundred eleven thousand, one hundred forty-three".