475505143 has 2 divisors, whose sum is σ = 475505144. Its totient is φ = 475505142.

The previous prime is 475505119. The next prime is 475505183. The reversal of 475505143 is 341505574.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 475505143 - 2²⁵ = 441950711 is a prime.

It is a super-2 number, since 2×475505143² = 452210282038900898, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 475505099 and 475505108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (475505183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237752571 + 237752572.

It is an arithmetic number, because the mean of its divisors is an integer number (237752572).

Almost surely, 2^475505143 is an apocalyptic number.

475505143 is a deficient number, since it is larger than the sum of its proper divisors (1).

475505143 is an equidigital number, since it uses as much as digits as its factorization.

475505143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 475505143 is about 21806.0804134994. The cubic root of 475505143 is about 780.5218636743.

The spelling of 475505143 in words is "four hundred seventy-five million, five hundred five thousand, one hundred forty-three".