120864181 has 8 divisors (see below), whose sum is σ = 123501600. Its totient is φ = 118251408.

The previous prime is 120864179. The next prime is 120864193. The reversal of 120864181 is 181468021.

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

It is a cyclic number.

It is not a de Polignac number, because 120864181 - 2¹ = 120864179 is a prime.

It is a super-2 number, since 2×120864181² = 29216300497601522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120864131) 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, 3930 + ... + 16036.

It is an arithmetic number, because the mean of its divisors is an integer number (15437700).

Almost surely, 2^120864181 is an apocalyptic number.

It is an amenable number.

120864181 is a deficient number, since it is larger than the sum of its proper divisors (2637419).

120864181 is a wasteful number, since it uses less digits than its factorization.

120864181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12323.

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 120864181 is about 10993.8246756986. The cubic root of 120864181 is about 494.4236137034.

The spelling of 120864181 in words is "one hundred twenty million, eight hundred sixty-four thousand, one hundred eighty-one".