120099641 has 4 divisors (see below), whose sum is σ = 120151284. Its totient is φ = 120048000.

The previous prime is 120099631. The next prime is 120099647. The reversal of 120099641 is 146990021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 146990021 = 2591 ⋅56731.

It can be written as a sum of positive squares in 2 ways, for example, as 9765625 + 110334016 = 3125^2 + 10504^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120099641 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 120099598 and 120099607.

It is not an unprimeable number, because it can be changed into a prime (120099647) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 22160 + ... + 27041.

It is an arithmetic number, because the mean of its divisors is an integer number (30037821).

Almost surely, 2^120099641 is an apocalyptic number.

It is an amenable number.

120099641 is a deficient number, since it is larger than the sum of its proper divisors (51643).

120099641 is an equidigital number, since it uses as much as digits as its factorization.

120099641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51642.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 120099641 is about 10958.9981750158. The cubic root of 120099641 is about 493.3788970071.

The spelling of 120099641 in words is "one hundred twenty million, ninety-nine thousand, six hundred forty-one".