477228139 has 2 divisors, whose sum is σ = 477228140. Its totient is φ = 477228138.

The previous prime is 477228121. The next prime is 477228161. The reversal of 477228139 is 931822774.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 477228139 - 2⁵ = 477228107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 477228095 and 477228104.

It is not a weakly prime, because it can be changed into another prime (477628139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238614069 + 238614070.

It is an arithmetic number, because the mean of its divisors is an integer number (238614070).

Almost surely, 2^477228139 is an apocalyptic number.

477228139 is a deficient number, since it is larger than the sum of its proper divisors (1).

477228139 is an equidigital number, since it uses as much as digits as its factorization.

477228139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 43.

The square root of 477228139 is about 21845.5519271086. The cubic root of 477228139 is about 781.4634693120.

The spelling of 477228139 in words is "four hundred seventy-seven million, two hundred twenty-eight thousand, one hundred thirty-nine".