610410221 has 4 divisors (see below), whose sum is σ = 610474812. Its totient is φ = 610345632.

The previous prime is 610410193. The next prime is 610410223. The reversal of 610410221 is 122014016.

610410221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 417589225 + 192820996 = 20435^2 + 13886^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-610410221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 610410221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (610410223) 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, 15050 + ... + 38043.

It is an arithmetic number, because the mean of its divisors is an integer number (152618703).

Almost surely, 2^610410221 is an apocalyptic number.

It is an amenable number.

610410221 is a deficient number, since it is larger than the sum of its proper divisors (64591).

610410221 is a wasteful number, since it uses less digits than its factorization.

610410221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64590.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 610410221 is about 24706.4813561138. The cubic root of 610410221 is about 848.2826784877.

Adding to 610410221 its reverse (122014016), we get a palindrome (732424237).

The spelling of 610410221 in words is "six hundred ten million, four hundred ten thousand, two hundred twenty-one".