120081144 has 32 divisors (see below), whose sum is σ = 300769920. Its totient is φ = 39951456.

The previous prime is 120081119. The next prime is 120081151. The reversal of 120081144 is 441180021.

It is a happy number.

It is a super-2 number, since 2×120081144² = 28838962288697472, 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 120081144.

It is a congruent number.

It is an unprimeable number.

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, 9069 + ... + 17955.

It is an arithmetic number, because the mean of its divisors is an integer number (9399060).

Almost surely, 2^120081144 is an apocalyptic number.

It is an amenable number.

120081144 is an abundant number, since it is smaller than the sum of its proper divisors (180688776).

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

120081144 is a wasteful number, since it uses less digits than its factorization.

120081144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9459 (or 9455 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 120081144 is about 10958.1542241383. The cubic root of 120081144 is about 493.3535666566.

The spelling of 120081144 in words is "one hundred twenty million, eighty-one thousand, one hundred forty-four".