4431147139 has 2 divisors, whose sum is σ = 4431147140. Its totient is φ = 4431147138.

The previous prime is 4431147131. The next prime is 4431147173. The reversal of 4431147139 is 9317411344.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4431147139 - 2³ = 4431147131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4431147098 and 4431147107.

It is not a weakly prime, because it can be changed into another prime (4431147131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2215573569 + 2215573570.

It is an arithmetic number, because the mean of its divisors is an integer number (2215573570).

Almost surely, 2^4431147139 is an apocalyptic number.

4431147139 is a deficient number, since it is larger than the sum of its proper divisors (1).

4431147139 is an equidigital number, since it uses as much as digits as its factorization.

4431147139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 37.

The square root of 4431147139 is about 66566.8621687999. The cubic root of 4431147139 is about 1642.5000461332.

The spelling of 4431147139 in words is "four billion, four hundred thirty-one million, one hundred forty-seven thousand, one hundred thirty-nine".