15205324139 has 2 divisors, whose sum is σ = 15205324140. Its totient is φ = 15205324138.

The previous prime is 15205324091. The next prime is 15205324201. The reversal of 15205324139 is 93142350251.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15205324139 - 2²⁰ = 15204275563 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15205324099 and 15205324108.

It is not a weakly prime, because it can be changed into another prime (15205324039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7602662069 + 7602662070.

It is an arithmetic number, because the mean of its divisors is an integer number (7602662070).

Almost surely, 2^15205324139 is an apocalyptic number.

15205324139 is a deficient number, since it is larger than the sum of its proper divisors (1).

15205324139 is an equidigital number, since it uses as much as digits as its factorization.

15205324139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 35.

The spelling of 15205324139 in words is "fifteen billion, two hundred five million, three hundred twenty-four thousand, one hundred thirty-nine".