120507109 has 2 divisors, whose sum is σ = 120507110. Its totient is φ = 120507108.

The previous prime is 120507089. The next prime is 120507133. The reversal of 120507109 is 901705021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107184609 + 13322500 = 10353^2 + 3650^2 .

It is a cyclic number.

It is not a de Polignac number, because 120507109 - 2¹⁷ = 120376037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120501109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60253554 + 60253555.

It is an arithmetic number, because the mean of its divisors is an integer number (60253555).

Almost surely, 2^120507109 is an apocalyptic number.

It is an amenable number.

120507109 is a deficient number, since it is larger than the sum of its proper divisors (1).

120507109 is an equidigital number, since it uses as much as digits as its factorization.

120507109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 120507109 is about 10977.5730013514. The cubic root of 120507109 is about 493.9362375154.

The spelling of 120507109 in words is "one hundred twenty million, five hundred seven thousand, one hundred nine".