120081000 has 128 divisors (see below), whose sum is σ = 403603200. Its totient is φ = 29548800.

The previous prime is 120080993. The next prime is 120081023. The reversal of 120081000 is 180021.

It is a happy number.

It is a super-2 number, since 2×120081000² = 28838893122000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37461 + ... + 40539.

It is an arithmetic number, because the mean of its divisors is an integer number (3153150).

Almost surely, 2^120081000 is an apocalyptic number.

120081000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120081000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201801600).

120081000 is an abundant number, since it is smaller than the sum of its proper divisors (283522200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120081000 is a wasteful number, since it uses less digits than its factorization.

120081000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3116 (or 3102 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 120081000 is about 10958.1476536867. The cubic root of 120081000 is about 493.3533694484.

The spelling of 120081000 in words is "one hundred twenty million, eighty-one thousand".