120286109 has 2 divisors, whose sum is σ = 120286110. Its totient is φ = 120286108.

The previous prime is 120286091. The next prime is 120286123. The reversal of 120286109 is 901682021.

Together with previous prime (120286091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95981209 + 24304900 = 9797^2 + 4930^2 .

It is a cyclic number.

It is not a de Polignac number, because 120286109 - 2²⁰ = 119237533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120286139) 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, 60143054 + 60143055.

It is an arithmetic number, because the mean of its divisors is an integer number (60143055).

Almost surely, 2^120286109 is an apocalyptic number.

It is an amenable number.

120286109 is a deficient number, since it is larger than the sum of its proper divisors (1).

120286109 is an equidigital number, since it uses as much as digits as its factorization.

120286109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 120286109 is about 10967.5024048322. The cubic root of 120286109 is about 493.6341067739.

The spelling of 120286109 in words is "one hundred twenty million, two hundred eighty-six thousand, one hundred nine".