102245112449 has 2 divisors, whose sum is σ = 102245112450. Its totient is φ = 102245112448.

The previous prime is 102245112439. The next prime is 102245112461. The reversal of 102245112449 is 944211542201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87768210049 + 14476902400 = 296257^2 + 120320^2 .

It is a cyclic number.

It is not a de Polignac number, because 102245112449 - 2²⁸ = 101976676993 is a prime.

It is not a weakly prime, because it can be changed into another prime (102245112419) 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, 51122556224 + 51122556225.

It is an arithmetic number, because the mean of its divisors is an integer number (51122556225).

Almost surely, 2^102245112449 is an apocalyptic number.

It is an amenable number.

102245112449 is a deficient number, since it is larger than the sum of its proper divisors (1).

102245112449 is an equidigital number, since it uses as much as digits as its factorization.

102245112449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 102245112449 in words is "one hundred two billion, two hundred forty-five million, one hundred twelve thousand, four hundred forty-nine".