120853709 has 2 divisors, whose sum is σ = 120853710. Its totient is φ = 120853708.

The previous prime is 120853703. The next prime is 120853741. The reversal of 120853709 is 907358021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112996900 + 7856809 = 10630^2 + 2803^2 .

It is a cyclic number.

It is not a de Polignac number, because 120853709 - 2²⁴ = 104076493 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120853703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60426854 + 60426855.

It is an arithmetic number, because the mean of its divisors is an integer number (60426855).

Almost surely, 2^120853709 is an apocalyptic number.

It is an amenable number.

120853709 is a deficient number, since it is larger than the sum of its proper divisors (1).

120853709 is an equidigital number, since it uses as much as digits as its factorization.

120853709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 120853709 is about 10993.3483980087. The cubic root of 120853709 is about 494.4093338907.

The spelling of 120853709 in words is "one hundred twenty million, eight hundred fifty-three thousand, seven hundred nine".