120181481 has 8 divisors (see below), whose sum is σ = 142086720. Its totient is φ = 99460368.

The previous prime is 120181471. The next prime is 120181493. The reversal of 120181481 is 184181021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-120181481 is a prime.

It is a super-2 number, since 2×120181481² = 28887176750706722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120181481.

It is not an unprimeable number, because it can be changed into a prime (120181421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295811 + ... + 296216.

It is an arithmetic number, because the mean of its divisors is an integer number (17760840).

Almost surely, 2^120181481 is an apocalyptic number.

It is an amenable number.

120181481 is a deficient number, since it is larger than the sum of its proper divisors (21905239).

120181481 is an equidigital number, since it uses as much as digits as its factorization.

120181481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592063.

The product of its (nonzero) digits is 512, while the sum is 26.

The square root of 120181481 is about 10962.7314570777. The cubic root of 120181481 is about 493.4909399751.

The spelling of 120181481 in words is "one hundred twenty million, one hundred eighty-one thousand, four hundred eighty-one".