120709 has 2 divisors, whose sum is σ = 120710. Its totient is φ = 120708.

The previous prime is 120691. The next prime is 120713. The reversal of 120709 is 907021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91809 + 28900 = 303^2 + 170^2 .

It is an emirp because it is prime and its reverse (907021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120709 - 2⁵ = 120677 is a prime.

It is a Chen prime.

It is equal to p₁₁₃₅₉ and since 120709 and 11359 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60354 + 60355.

It is an arithmetic number, because the mean of its divisors is an integer number (60355).

2¹²⁰⁷⁰⁹ is an apocalyptic number.

It is an amenable number.

120709 is a deficient number, since it is larger than the sum of its proper divisors (1).

120709 is an equidigital number, since it uses as much as digits as its factorization.

120709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 120709 is about 347.4320077368. The cubic root of 120709 is about 49.4211921510.

The spelling of 120709 in words is "one hundred twenty thousand, seven hundred nine".