112219309 has 2 divisors, whose sum is σ = 112219310. Its totient is φ = 112219308.

The previous prime is 112219297. The next prime is 112219313. The reversal of 112219309 is 903912211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111239209 + 980100 = 10547^2 + 990^2 .

It is an emirp because it is prime and its reverse (903912211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112219309 - 2¹³ = 112211117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112219319) 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, 56109654 + 56109655.

It is an arithmetic number, because the mean of its divisors is an integer number (56109655).

Almost surely, 2^112219309 is an apocalyptic number.

It is an amenable number.

112219309 is a deficient number, since it is larger than the sum of its proper divisors (1).

112219309 is an equidigital number, since it uses as much as digits as its factorization.

112219309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 112219309 is about 10593.3615533503. The cubic root of 112219309 is about 482.3428702558.

The spelling of 112219309 in words is "one hundred twelve million, two hundred nineteen thousand, three hundred nine".