120558869 has 4 divisors (see below), whose sum is σ = 120683244. Its totient is φ = 120434496.

The previous prime is 120558863. The next prime is 120558871. The reversal of 120558869 is 968855021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 968855021 = 887 ⋅1092283.

It can be written as a sum of positive squares in 2 ways, for example, as 117180625 + 3378244 = 10825^2 + 1838^2 .

It is a cyclic number.

It is not a de Polignac number, because 120558869 - 2¹² = 120554773 is a prime.

It is a super-2 number, since 2×120558869² = 29068881789118322, 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 (120558863) 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, 60722 + ... + 62675.

It is an arithmetic number, because the mean of its divisors is an integer number (30170811).

Almost surely, 2^120558869 is an apocalyptic number.

It is an amenable number.

120558869 is a deficient number, since it is larger than the sum of its proper divisors (124375).

120558869 is an equidigital number, since it uses as much as digits as its factorization.

120558869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124374.

The product of its (nonzero) digits is 172800, while the sum is 44.

The square root of 120558869 is about 10979.9302821102. The cubic root of 120558869 is about 494.0069455989.

The spelling of 120558869 in words is "one hundred twenty million, five hundred fifty-eight thousand, eight hundred sixty-nine".