120271993 has 2 divisors, whose sum is σ = 120271994. Its totient is φ = 120271992.

The previous prime is 120271979. The next prime is 120272011. The reversal of 120271993 is 399172021.

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., 98247744 + 22024249 = 9912^2 + 4693^2 .

It is a cyclic number.

It is not a de Polignac number, because 120271993 - 2²¹ = 118174841 is a prime.

It is not a weakly prime, because it can be changed into another prime (120271973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60135996 + 60135997.

It is an arithmetic number, because the mean of its divisors is an integer number (60135997).

Almost surely, 2^120271993 is an apocalyptic number.

It is an amenable number.

120271993 is a deficient number, since it is larger than the sum of its proper divisors (1).

120271993 is an equidigital number, since it uses as much as digits as its factorization.

120271993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 120271993 is about 10966.8588483667. The cubic root of 120271993 is about 493.6147961161.

It can be divided in two parts, 120 and 271993, that multiplied together give a triangular number (32639160 = T₈₀₇₉).

The spelling of 120271993 in words is "one hundred twenty million, two hundred seventy-one thousand, nine hundred ninety-three".