4445205139 has 2 divisors, whose sum is σ = 4445205140. Its totient is φ = 4445205138.

The previous prime is 4445205119. The next prime is 4445205179. The reversal of 4445205139 is 9315025444.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4445205139 is a prime.

It is a super-3 number, since 3×4445205139³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4445205098 and 4445205107.

It is not a weakly prime, because it can be changed into another prime (4445205119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2222602569 + 2222602570.

It is an arithmetic number, because the mean of its divisors is an integer number (2222602570).

Almost surely, 2^4445205139 is an apocalyptic number.

4445205139 is a deficient number, since it is larger than the sum of its proper divisors (1).

4445205139 is an equidigital number, since it uses as much as digits as its factorization.

4445205139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 4445205139 is about 66672.3716317336. The cubic root of 4445205139 is about 1644.2351792408.

The spelling of 4445205139 in words is "four billion, four hundred forty-five million, two hundred five thousand, one hundred thirty-nine".