110142209 has 2 divisors, whose sum is σ = 110142210. Its totient is φ = 110142208.

The previous prime is 110142199. The next prime is 110142247. The reversal of 110142209 is 902241011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73479184 + 36663025 = 8572^2 + 6055^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110142209 is a prime.

It is not a weakly prime, because it can be changed into another prime (110142289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55071104 + 55071105.

It is an arithmetic number, because the mean of its divisors is an integer number (55071105).

Almost surely, 2^110142209 is an apocalyptic number.

It is an amenable number.

110142209 is a deficient number, since it is larger than the sum of its proper divisors (1).

110142209 is an equidigital number, since it uses as much as digits as its factorization.

110142209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 110142209 is about 10494.8658400191. The cubic root of 110142209 is about 479.3483764955.

The spelling of 110142209 in words is "one hundred ten million, one hundred forty-two thousand, two hundred nine".