120240649 has 2 divisors, whose sum is σ = 120240650. Its totient is φ = 120240648.

The previous prime is 120240629. The next prime is 120240667. The reversal of 120240649 is 946042021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114918400 + 5322249 = 10720^2 + 2307^2 .

It is an emirp because it is prime and its reverse (946042021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120240649 - 2⁹ = 120240137 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (120240629) 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, 60120324 + 60120325.

It is an arithmetic number, because the mean of its divisors is an integer number (60120325).

Almost surely, 2^120240649 is an apocalyptic number.

It is an amenable number.

120240649 is a deficient number, since it is larger than the sum of its proper divisors (1).

120240649 is an equidigital number, since it uses as much as digits as its factorization.

120240649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 120240649 is about 10965.4297225417. The cubic root of 120240649 is about 493.5719121883.

The spelling of 120240649 in words is "one hundred twenty million, two hundred forty thousand, six hundred forty-nine".