478146143 has 2 divisors, whose sum is σ = 478146144. Its totient is φ = 478146142.

The previous prime is 478146101. The next prime is 478146161. The reversal of 478146143 is 341641874.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 478146143 - 2¹⁰ = 478145119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 478146097 and 478146106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478146173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239073071 + 239073072.

It is an arithmetic number, because the mean of its divisors is an integer number (239073072).

Almost surely, 2^478146143 is an apocalyptic number.

478146143 is a deficient number, since it is larger than the sum of its proper divisors (1).

478146143 is an equidigital number, since it uses as much as digits as its factorization.

478146143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 38.

The square root of 478146143 is about 21866.5530662700. The cubic root of 478146143 is about 781.9642270774.

The spelling of 478146143 in words is "four hundred seventy-eight million, one hundred forty-six thousand, one hundred forty-three".