15120308747 has 2 divisors, whose sum is σ = 15120308748. Its totient is φ = 15120308746.

The previous prime is 15120308719. The next prime is 15120308773. The reversal of 15120308747 is 74780302151.

15120308747 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 is a cyclic number.

It is not a de Polignac number, because 15120308747 - 2¹⁰ = 15120307723 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15120308747.

It is not a weakly prime, because it can be changed into another prime (15120308447) 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, 7560154373 + 7560154374.

It is an arithmetic number, because the mean of its divisors is an integer number (7560154374).

Almost surely, 2^15120308747 is an apocalyptic number.

15120308747 is a deficient number, since it is larger than the sum of its proper divisors (1).

15120308747 is an equidigital number, since it uses as much as digits as its factorization.

15120308747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 38.

The spelling of 15120308747 in words is "fifteen billion, one hundred twenty million, three hundred eight thousand, seven hundred forty-seven".