610220609 has 2 divisors, whose sum is σ = 610220610. Its totient is φ = 610220608.

The previous prime is 610220603. The next prime is 610220669. The reversal of 610220609 is 906022016.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 412902400 + 197318209 = 20320^2 + 14047^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-610220609 is a prime.

It is not a weakly prime, because it can be changed into another prime (610220603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305110304 + 305110305.

It is an arithmetic number, because the mean of its divisors is an integer number (305110305).

Almost surely, 2^610220609 is an apocalyptic number.

It is an amenable number.

610220609 is a deficient number, since it is larger than the sum of its proper divisors (1).

610220609 is an equidigital number, since it uses as much as digits as its factorization.

610220609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 610220609 is about 24702.6437653948. The cubic root of 610220609 is about 848.1948352489.

The spelling of 610220609 in words is "six hundred ten million, two hundred twenty thousand, six hundred nine".