15242399297 has 2 divisors, whose sum is σ = 15242399298. Its totient is φ = 15242399296.

The previous prime is 15242399287. The next prime is 15242399321. The reversal of 15242399297 is 79299324251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15099740161 + 142659136 = 122881^2 + 11944^2 .

It is a cyclic number.

It is not a de Polignac number, because 15242399297 - 2¹⁴ = 15242382913 is a prime.

It is not a weakly prime, because it can be changed into another prime (15242399287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7621199648 + 7621199649.

It is an arithmetic number, because the mean of its divisors is an integer number (7621199649).

Almost surely, 2^15242399297 is an apocalyptic number.

It is an amenable number.

15242399297 is a deficient number, since it is larger than the sum of its proper divisors (1).

15242399297 is an equidigital number, since it uses as much as digits as its factorization.

15242399297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2449440, while the sum is 53.

The spelling of 15242399297 in words is "fifteen billion, two hundred forty-two million, three hundred ninety-nine thousand, two hundred ninety-seven".