112142209 has 2 divisors, whose sum is σ = 112142210. Its totient is φ = 112142208.

The previous prime is 112142203. The next prime is 112142231. The reversal of 112142209 is 902241211.

It is an a-pointer prime, because the next prime (112142231) can be obtained adding 112142209 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79709184 + 32433025 = 8928^2 + 5695^2 .

It is an emirp because it is prime and its reverse (902241211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112142209 - 2²¹ = 110045057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 112142209.

It is not a weakly prime, because it can be changed into another prime (112142203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56071104 + 56071105.

It is an arithmetic number, because the mean of its divisors is an integer number (56071105).

Almost surely, 2^112142209 is an apocalyptic number.

It is an amenable number.

112142209 is a deficient number, since it is larger than the sum of its proper divisors (1).

112142209 is an equidigital number, since it uses as much as digits as its factorization.

112142209 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 22.

The square root of 112142209 is about 10589.7218565928. The cubic root of 112142209 is about 482.2323807875.

The spelling of 112142209 in words is "one hundred twelve million, one hundred forty-two thousand, two hundred nine".