120271979 has 2 divisors, whose sum is σ = 120271980. Its totient is φ = 120271978.

The previous prime is 120271973. The next prime is 120271993. The reversal of 120271979 is 979172021.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120271979 is a prime.

It is a Chen 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, 60135989 + 60135990.

It is an arithmetic number, because the mean of its divisors is an integer number (60135990).

Almost surely, 2^120271979 is an apocalyptic number.

120271979 is a deficient number, since it is larger than the sum of its proper divisors (1).

120271979 is an equidigital number, since it uses as much as digits as its factorization.

120271979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876, while the sum is 38.

The square root of 120271979 is about 10966.8582100800. The cubic root of 120271979 is about 493.6147769634.

The spelling of 120271979 in words is "one hundred twenty million, two hundred seventy-one thousand, nine hundred seventy-nine".