478142183 has 4 divisors (see below), whose sum is σ = 479116488. Its totient is φ = 477167880.

The previous prime is 478142177. The next prime is 478142213. The reversal of 478142183 is 381241874.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 478142183 - 2⁸ = 478141927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478142113) 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, 486416 + ... + 487397.

It is an arithmetic number, because the mean of its divisors is an integer number (119779122).

Almost surely, 2^478142183 is an apocalyptic number.

478142183 is a deficient number, since it is larger than the sum of its proper divisors (974305).

478142183 is an equidigital number, since it uses as much as digits as its factorization.

478142183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974304.

The product of its digits is 43008, while the sum is 38.

The square root of 478142183 is about 21866.4625168316. The cubic root of 478142183 is about 781.9620683323.

It can be divided in two parts, 4781 and 42183, that added together give a palindrome (46964).

The spelling of 478142183 in words is "four hundred seventy-eight million, one hundred forty-two thousand, one hundred eighty-three".