120129854 has 16 divisors (see below), whose sum is σ = 205471728. Its totient is φ = 52182912.

The previous prime is 120129833. The next prime is 120129857. The reversal of 120129854 is 458921021.

It is a super-2 number, since 2×120129854² = 28862363644122632, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120129854.

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 7 ways as a sum of consecutive naturals, for example, 135452 + ... + 136335.

It is an arithmetic number, because the mean of its divisors is an integer number (12841983).

Almost surely, 2^120129854 is an apocalyptic number.

120129854 is a deficient number, since it is larger than the sum of its proper divisors (85341874).

120129854 is a wasteful number, since it uses less digits than its factorization.

120129854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271819.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 120129854 is about 10960.3765446266. The cubic root of 120129854 is about 493.4202660089.

The spelling of 120129854 in words is "one hundred twenty million, one hundred twenty-nine thousand, eight hundred fifty-four".