15238704191 has 2 divisors, whose sum is σ = 15238704192. Its totient is φ = 15238704190.

The previous prime is 15238704161. The next prime is 15238704199. The reversal of 15238704191 is 19140783251.

15238704191 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 15238704191 - 2²² = 15234509887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15238704199) 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, 7619352095 + 7619352096.

It is an arithmetic number, because the mean of its divisors is an integer number (7619352096).

Almost surely, 2^15238704191 is an apocalyptic number.

15238704191 is a deficient number, since it is larger than the sum of its proper divisors (1).

15238704191 is an equidigital number, since it uses as much as digits as its factorization.

15238704191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 41.

The spelling of 15238704191 in words is "fifteen billion, two hundred thirty-eight million, seven hundred four thousand, one hundred ninety-one".