478133131 has 24 divisors (see below), whose sum is σ = 582177024. Its totient is φ = 390796560.

The previous prime is 478133113. The next prime is 478133197. The reversal of 478133131 is 131331874.

It is not a de Polignac number, because 478133131 - 2⁷ = 478133003 is a prime.

It is a super-2 number, since 2×478133131² = 457222581919726322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 478133093 and 478133102.

It is not an unprimeable number, because it can be changed into a prime (478133111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 643146 + ... + 643888.

It is an arithmetic number, because the mean of its divisors is an integer number (24257376).

Almost surely, 2^478133131 is an apocalyptic number.

478133131 is a deficient number, since it is larger than the sum of its proper divisors (104043893).

478133131 is a wasteful number, since it uses less digits than its factorization.

478133131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351 (or 1344 counting only the distinct ones).

The product of its digits is 6048, while the sum is 31.

The square root of 478133131 is about 21866.2555322122. The cubic root of 478133131 is about 781.9571337016.

The spelling of 478133131 in words is "four hundred seventy-eight million, one hundred thirty-three thousand, one hundred thirty-one".