5440129139 has 2 divisors, whose sum is σ = 5440129140. Its totient is φ = 5440129138.

The previous prime is 5440129103. The next prime is 5440129159. The reversal of 5440129139 is 9319210445.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5440129139 is a prime.

It is not a weakly prime, because it can be changed into another prime (5440129159) 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, 2720064569 + 2720064570.

It is an arithmetic number, because the mean of its divisors is an integer number (2720064570).

Almost surely, 2^5440129139 is an apocalyptic number.

5440129139 is a deficient number, since it is larger than the sum of its proper divisors (1).

5440129139 is an equidigital number, since it uses as much as digits as its factorization.

5440129139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 5440129139 is about 73757.2310963474. The cubic root of 5440129139 is about 1758.7457854734.

The spelling of 5440129139 in words is "five billion, four hundred forty million, one hundred twenty-nine thousand, one hundred thirty-nine".