120441861 has 6 divisors (see below), whose sum is σ = 173971590. Its totient is φ = 80294568.

The previous prime is 120441859. The next prime is 120441943. The reversal of 120441861 is 168144021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 103917636 + 16524225 = 10194^2 + 4065^2 .

It is not a de Polignac number, because 120441861 - 2¹ = 120441859 is a prime.

It is a super-2 number, since 2×120441861² = 29012483762286642, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120441161) 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 5 ways as a sum of consecutive naturals, for example, 6691206 + ... + 6691223.

It is an arithmetic number, because the mean of its divisors is an integer number (28995265).

Almost surely, 2^120441861 is an apocalyptic number.

It is an amenable number.

120441861 is a deficient number, since it is larger than the sum of its proper divisors (53529729).

120441861 is a wasteful number, since it uses less digits than its factorization.

120441861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13382435 (or 13382432 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 120441861 is about 10974.6007216664. The cubic root of 120441861 is about 493.8470749472.

Adding to 120441861 its reverse (168144021), we get a palindrome (288585882).

The spelling of 120441861 in words is "one hundred twenty million, four hundred forty-one thousand, eight hundred sixty-one".