478158143 has 4 divisors (see below), whose sum is σ = 478203120. Its totient is φ = 478113168.

The previous prime is 478158137. The next prime is 478158181. The reversal of 478158143 is 341851874.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 478158143 - 2¹⁶ = 478092607 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 478158143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478158743) 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, 3371 + ... + 31107.

It is an arithmetic number, because the mean of its divisors is an integer number (119550780).

Almost surely, 2^478158143 is an apocalyptic number.

478158143 is a deficient number, since it is larger than the sum of its proper divisors (44977).

478158143 is a wasteful number, since it uses less digits than its factorization.

478158143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44976.

The product of its digits is 107520, while the sum is 41.

The square root of 478158143 is about 21866.8274562178. The cubic root of 478158143 is about 781.9707686564.

The spelling of 478158143 in words is "four hundred seventy-eight million, one hundred fifty-eight thousand, one hundred forty-three".