478544155 has 8 divisors (see below), whose sum is σ = 585088272. Its totient is φ = 375611808.

The previous prime is 478544147. The next prime is 478544173. The reversal of 478544155 is 551445874.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 478544155 - 2³ = 478544147 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 902649 + ... + 903178.

It is an arithmetic number, because the mean of its divisors is an integer number (73136034).

Almost surely, 2^478544155 is an apocalyptic number.

478544155 is a deficient number, since it is larger than the sum of its proper divisors (106544117).

478544155 is a wasteful number, since it uses less digits than its factorization.

478544155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1805885.

The product of its digits is 448000, while the sum is 43.

The square root of 478544155 is about 21875.6521045659. The cubic root of 478544155 is about 782.1811376276.

The spelling of 478544155 in words is "four hundred seventy-eight million, five hundred forty-four thousand, one hundred fifty-five".