7345528139 has 2 divisors, whose sum is σ = 7345528140. Its totient is φ = 7345528138.

The previous prime is 7345528103. The next prime is 7345528159. The reversal of 7345528139 is 9318255437.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7345528139 - 2⁸ = 7345527883 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 7345528093 and 7345528102.

It is not a weakly prime, because it can be changed into another prime (7345528159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3672764069 + 3672764070.

It is an arithmetic number, because the mean of its divisors is an integer number (3672764070).

Almost surely, 2^7345528139 is an apocalyptic number.

7345528139 is a deficient number, since it is larger than the sum of its proper divisors (1).

7345528139 is an equidigital number, since it uses as much as digits as its factorization.

7345528139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 907200, while the sum is 47.

The square root of 7345528139 is about 85706.0566062866. The cubic root of 7345528139 is about 1943.9018910553.

The spelling of 7345528139 in words is "seven billion, three hundred forty-five million, five hundred twenty-eight thousand, one hundred thirty-nine".