120681841 has 4 divisors (see below), whose sum is σ = 137922112. Its totient is φ = 103441572.

The previous prime is 120681839. The next prime is 120681887. The reversal of 120681841 is 148186021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 148186021 = 131 ⋅1131191.

It is a cyclic number.

It is not a de Polignac number, because 120681841 - 2¹ = 120681839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120681811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8620125 + ... + 8620138.

It is an arithmetic number, because the mean of its divisors is an integer number (34480528).

Almost surely, 2^120681841 is an apocalyptic number.

It is an amenable number.

120681841 is a deficient number, since it is larger than the sum of its proper divisors (17240271).

120681841 is an equidigital number, since it uses as much as digits as its factorization.

120681841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17240270.

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

The square root of 120681841 is about 10985.5287082598. The cubic root of 120681841 is about 494.1748535521.

The spelling of 120681841 in words is "one hundred twenty million, six hundred eighty-one thousand, eight hundred forty-one".