15247470209 has 2 divisors, whose sum is σ = 15247470210. Its totient is φ = 15247470208.

The previous prime is 15247470149. The next prime is 15247470223. The reversal of 15247470209 is 90207474251.

15247470209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13559903809 + 1687566400 = 116447^2 + 41080^2 .

It is a cyclic number.

It is not a de Polignac number, because 15247470209 - 2⁸ = 15247469953 is a prime.

It is not a weakly prime, because it can be changed into another prime (15247470509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7623735104 + 7623735105.

It is an arithmetic number, because the mean of its divisors is an integer number (7623735105).

Almost surely, 2^15247470209 is an apocalyptic number.

It is an amenable number.

15247470209 is a deficient number, since it is larger than the sum of its proper divisors (1).

15247470209 is an equidigital number, since it uses as much as digits as its factorization.

15247470209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 15247470209 in words is "fifteen billion, two hundred forty-seven million, four hundred seventy thousand, two hundred nine".