12172525153 has 2 divisors, whose sum is σ = 12172525154. Its totient is φ = 12172525152.

The previous prime is 12172525139. The next prime is 12172525171. The reversal of 12172525153 is 35152527121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11157274384 + 1015250769 = 105628^2 + 31863^2 .

It is a cyclic number.

It is not a de Polignac number, because 12172525153 - 2⁵ = 12172525121 is a prime.

It is not a weakly prime, because it can be changed into another prime (12172525103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6086262576 + 6086262577.

It is an arithmetic number, because the mean of its divisors is an integer number (6086262577).

Almost surely, 2^12172525153 is an apocalyptic number.

It is an amenable number.

12172525153 is a deficient number, since it is larger than the sum of its proper divisors (1).

12172525153 is an equidigital number, since it uses as much as digits as its factorization.

12172525153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21000, while the sum is 34.

The spelling of 12172525153 in words is "twelve billion, one hundred seventy-two million, five hundred twenty-five thousand, one hundred fifty-three".