120877109 has 2 divisors, whose sum is σ = 120877110. Its totient is φ = 120877108.

The previous prime is 120877093. The next prime is 120877129. The reversal of 120877109 is 901778021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94148209 + 26728900 = 9703^2 + 5170^2 .

It is an emirp because it is prime and its reverse (901778021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120877109 - 2⁴ = 120877093 is a prime.

It is a super-2 number, since 2×120877109² = 29222550960395762, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120877129) 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, 60438554 + 60438555.

It is an arithmetic number, because the mean of its divisors is an integer number (60438555).

Almost surely, 2^120877109 is an apocalyptic number.

It is an amenable number.

120877109 is a deficient number, since it is larger than the sum of its proper divisors (1).

120877109 is an equidigital number, since it uses as much as digits as its factorization.

120877109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 35.

The square root of 120877109 is about 10994.4126264207. The cubic root of 120877109 is about 494.4412414256.

The spelling of 120877109 in words is "one hundred twenty million, eight hundred seventy-seven thousand, one hundred nine".