120839977 has 2 divisors, whose sum is σ = 120839978. Its totient is φ = 120839976.

The previous prime is 120839969. The next prime is 120839987. The reversal of 120839977 is 779938021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98029801 + 22810176 = 9901^2 + 4776^2 .

It is a cyclic number.

It is not a de Polignac number, because 120839977 - 2³ = 120839969 is a prime.

It is not a weakly prime, because it can be changed into another prime (120839987) 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, 60419988 + 60419989.

It is an arithmetic number, because the mean of its divisors is an integer number (60419989).

Almost surely, 2^120839977 is an apocalyptic number.

It is an amenable number.

120839977 is a deficient number, since it is larger than the sum of its proper divisors (1).

120839977 is an equidigital number, since it uses as much as digits as its factorization.

120839977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 190512, while the sum is 46.

The square root of 120839977 is about 10992.7238207825. The cubic root of 120839977 is about 494.3906074315.

The spelling of 120839977 in words is "one hundred twenty million, eight hundred thirty-nine thousand, nine hundred seventy-seven".