605112121 has 2 divisors, whose sum is σ = 605112122. Its totient is φ = 605112120.

The previous prime is 605112089. The next prime is 605112163. The reversal of 605112121 is 121211506.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 597069225 + 8042896 = 24435^2 + 2836^2 .

It is a cyclic number.

It is not a de Polignac number, because 605112121 - 2⁵ = 605112089 is a prime.

It is a super-2 number, since 2×605112121² = 732321357962237282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (605112181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302556060 + 302556061.

It is an arithmetic number, because the mean of its divisors is an integer number (302556061).

Almost surely, 2^605112121 is an apocalyptic number.

It is an amenable number.

605112121 is a deficient number, since it is larger than the sum of its proper divisors (1).

605112121 is an equidigital number, since it uses as much as digits as its factorization.

605112121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 605112121 is about 24599.0268303443. The cubic root of 605112121 is about 845.8212996765.

Adding to 605112121 its reverse (121211506), we get a palindrome (726323627).

The spelling of 605112121 in words is "six hundred five million, one hundred twelve thousand, one hundred twenty-one".