120979147 has 2 divisors, whose sum is σ = 120979148. Its totient is φ = 120979146.

The previous prime is 120979141. The next prime is 120979169. The reversal of 120979147 is 741979021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120979147 - 2³ = 120979139 is a prime.

It is not a weakly prime, because it can be changed into another prime (120979141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60489573 + 60489574.

It is an arithmetic number, because the mean of its divisors is an integer number (60489574).

Almost surely, 2^120979147 is an apocalyptic number.

120979147 is a deficient number, since it is larger than the sum of its proper divisors (1).

120979147 is an equidigital number, since it uses as much as digits as its factorization.

120979147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 120979147 is about 10999.0520955217. The cubic root of 120979147 is about 494.5803292596.

The spelling of 120979147 in words is "one hundred twenty million, nine hundred seventy-nine thousand, one hundred forty-seven".