120129853 has 4 divisors (see below), whose sum is σ = 122396508. Its totient is φ = 117863200.

The previous prime is 120129833. The next prime is 120129857. The reversal of 120129853 is 358921021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 104305369 + 15824484 = 10213^2 + 3978^2 .

It is a cyclic number.

It is not a de Polignac number, because 120129853 - 2²⁵ = 86575421 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120129857) 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 in 3 ways as a sum of consecutive naturals, for example, 1133248 + ... + 1133353.

It is an arithmetic number, because the mean of its divisors is an integer number (30599127).

Almost surely, 2^120129853 is an apocalyptic number.

It is an amenable number.

120129853 is a deficient number, since it is larger than the sum of its proper divisors (2266655).

120129853 is an equidigital number, since it uses as much as digits as its factorization.

120129853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2266654.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 120129853 is about 10960.3764990077. The cubic root of 120129853 is about 493.4202646398.

The spelling of 120129853 in words is "one hundred twenty million, one hundred twenty-nine thousand, eight hundred fifty-three".