478155 has 16 divisors (see below), whose sum is σ = 774144. Its totient is φ = 252000.

The previous prime is 478139. The next prime is 478157. The reversal of 478155 is 551874.

It is not a de Polignac number, because 478155 - 2⁴ = 478139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1780 + ... + 2030.

It is an arithmetic number, because the mean of its divisors is an integer number (48384).

2⁴⁷⁸¹⁵⁵ is an apocalyptic number.

478155 is a deficient number, since it is larger than the sum of its proper divisors (295989).

478155 is a wasteful number, since it uses less digits than its factorization.

478155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386.

The product of its digits is 5600, while the sum is 30.

The square root of 478155 is about 691.4875270025. The cubic root of 478155 is about 78.1969055318.

The spelling of 478155 in words is "four hundred seventy-eight thousand, one hundred fifty-five".