610112021 has 12 divisors (see below), whose sum is σ = 659634444. Its totient is φ = 563889600.

The previous prime is 610112011. The next prime is 610112081. The reversal of 610112021 is 120211016.

It can be written as a sum of positive squares in 2 ways, for example, as 59505796 + 550606225 = 7714^2 + 23465^2 .

It is not a de Polignac number, because 610112021 - 2¹⁰ = 610110997 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 = 610111987 and 610112005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (610112011) 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 11 ways as a sum of consecutive naturals, for example, 5810 + ... + 35411.

It is an arithmetic number, because the mean of its divisors is an integer number (54969537).

Almost surely, 2^610112021 is an apocalyptic number.

It is an amenable number.

610112021 is a deficient number, since it is larger than the sum of its proper divisors (49522423).

610112021 is a wasteful number, since it uses less digits than its factorization.

610112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41300 (or 41281 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 610112021 is about 24700.4457652084. The cubic root of 610112021 is about 848.1445205249.

Adding to 610112021 its reverse (120211016), we get a palindrome (730323037).

The spelling of 610112021 in words is "six hundred ten million, one hundred twelve thousand, twenty-one".