112281109 has 2 divisors, whose sum is σ = 112281110. Its totient is φ = 112281108.

The previous prime is 112281097. The next prime is 112281131. The reversal of 112281109 is 901182211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110040100 + 2241009 = 10490^2 + 1497^2 .

It is a cyclic number.

It is not a de Polignac number, because 112281109 - 2⁵ = 112281077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112281149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56140554 + 56140555.

It is an arithmetic number, because the mean of its divisors is an integer number (56140555).

Almost surely, 2^112281109 is an apocalyptic number.

It is an amenable number.

112281109 is a deficient number, since it is larger than the sum of its proper divisors (1).

112281109 is an equidigital number, since it uses as much as digits as its factorization.

112281109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 25.

The square root of 112281109 is about 10596.2780729839. The cubic root of 112281109 is about 482.4313972640.

The spelling of 112281109 in words is "one hundred twelve million, two hundred eighty-one thousand, one hundred nine".