479138147 has 2 divisors, whose sum is σ = 479138148. Its totient is φ = 479138146.

The previous prime is 479138129. The next prime is 479138159. The reversal of 479138147 is 741831974.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 479138147 - 2⁶ = 479138083 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 479138098 and 479138107.

It is not a weakly prime, because it can be changed into another prime (479138117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239569073 + 239569074.

It is an arithmetic number, because the mean of its divisors is an integer number (239569074).

Almost surely, 2^479138147 is an apocalyptic number.

479138147 is a deficient number, since it is larger than the sum of its proper divisors (1).

479138147 is an equidigital number, since it uses as much as digits as its factorization.

479138147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 44.

The square root of 479138147 is about 21889.2244494866. The cubic root of 479138147 is about 782.5046307572.

The spelling of 479138147 in words is "four hundred seventy-nine million, one hundred thirty-eight thousand, one hundred forty-seven".