15315322097 has 2 divisors, whose sum is σ = 15315322098. Its totient is φ = 15315322096.

The previous prime is 15315322079. The next prime is 15315322111. The reversal of 15315322097 is 79022351351.

It is a happy number.

15315322097 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (15315322079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11438516401 + 3876805696 = 106951^2 + 62264^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15315322097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15315322097.

It is not a weakly prime, because it can be changed into another prime (15315324097) 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, 7657661048 + 7657661049.

It is an arithmetic number, because the mean of its divisors is an integer number (7657661049).

Almost surely, 2^15315322097 is an apocalyptic number.

It is an amenable number.

15315322097 is a deficient number, since it is larger than the sum of its proper divisors (1).

15315322097 is an equidigital number, since it uses as much as digits as its factorization.

15315322097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56700, while the sum is 38.

The spelling of 15315322097 in words is "fifteen billion, three hundred fifteen million, three hundred twenty-two thousand, ninety-seven".