15122223152447 has 2 divisors, whose sum is σ = 15122223152448. Its totient is φ = 15122223152446.

The previous prime is 15122223152419. The next prime is 15122223152459. The reversal of 15122223152447 is 74425132222151.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15122223152447 - 2²⁴ = 15122206375231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15122223152497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7561111576223 + 7561111576224.

It is an arithmetic number, because the mean of its divisors is an integer number (7561111576224).

Almost surely, 2^{15122223152447} is an apocalyptic number.

15122223152447 is a deficient number, since it is larger than the sum of its proper divisors (1).

15122223152447 is an equidigital number, since it uses as much as digits as its factorization.

15122223152447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 268800, while the sum is 41.

Adding to 15122223152447 its reverse (74425132222151), we get a palindrome (89547355374598).

The spelling of 15122223152447 in words is "fifteen trillion, one hundred twenty-two billion, two hundred twenty-three million, one hundred fifty-two thousand, four hundred forty-seven".