120557029 has 2 divisors, whose sum is σ = 120557030. Its totient is φ = 120557028.

The previous prime is 120557027. The next prime is 120557039. The reversal of 120557029 is 920755021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120494529 + 62500 = 10977^2 + 250^2 .

It is a cyclic number.

It is not a de Polignac number, because 120557029 - 2¹ = 120557027 is a prime.

Together with 120557027, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120557027) 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, 60278514 + 60278515.

It is an arithmetic number, because the mean of its divisors is an integer number (60278515).

Almost surely, 2^120557029 is an apocalyptic number.

It is an amenable number.

120557029 is a deficient number, since it is larger than the sum of its proper divisors (1).

120557029 is an equidigital number, since it uses as much as digits as its factorization.

120557029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 120557029 is about 10979.8464925517. The cubic root of 120557029 is about 494.0044323664.

The spelling of 120557029 in words is "one hundred twenty million, five hundred fifty-seven thousand, twenty-nine".