15243253047 has 12 divisors (see below), whose sum is σ = 24019671624. Its totient is φ = 9238335120.

The previous prime is 15243253027. The next prime is 15243253061. The reversal of 15243253047 is 74035234251.

15243253047 is a `hidden beast` number, since 1 + 5 + 24 + 325 + 304 + 7 = 666.

15243253047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15243253047 - 2¹⁹ = 15242728759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15243253027) 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 in 11 ways as a sum of consecutive naturals, for example, 76986028 + ... + 76986225.

It is an arithmetic number, because the mean of its divisors is an integer number (2001639302).

Almost surely, 2^15243253047 is an apocalyptic number.

15243253047 is a deficient number, since it is larger than the sum of its proper divisors (8776418577).

15243253047 is a wasteful number, since it uses less digits than its factorization.

15243253047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153972270 (or 153972267 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

Adding to 15243253047 its reverse (74035234251), we get a palindrome (89278487298).

The spelling of 15243253047 in words is "fifteen billion, two hundred forty-three million, two hundred fifty-three thousand, forty-seven".