475886143 has 4 divisors (see below), whose sum is σ = 492296040. Its totient is φ = 459476248.

The previous prime is 475886137. The next prime is 475886149. The reversal of 475886143 is 341688574.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341688574 = 2 ⋅170844287.

It is an interprime number because it is at equal distance from previous prime (475886137) and next prime (475886149).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-475886143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 475886093 and 475886102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475886149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8204905 + ... + 8204962.

It is an arithmetic number, because the mean of its divisors is an integer number (123074010).

Almost surely, 2^475886143 is an apocalyptic number.

475886143 is a deficient number, since it is larger than the sum of its proper divisors (16409897).

475886143 is a wasteful number, since it uses less digits than its factorization.

475886143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16409896.

The product of its digits is 645120, while the sum is 46.

The square root of 475886143 is about 21814.8147596994. The cubic root of 475886143 is about 780.7302732254.

The spelling of 475886143 in words is "four hundred seventy-five million, eight hundred eighty-six thousand, one hundred forty-three".