610610645 has 4 divisors (see below), whose sum is σ = 732732780. Its totient is φ = 488488512.

The previous prime is 610610639. The next prime is 610610681. The reversal of 610610645 is 546016016.

610610645 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.

It can be written as a sum of positive squares in 2 ways, for example, as 287438116 + 323172529 = 16954^2 + 17977^2 .

It is a cyclic number.

It is not a de Polignac number, because 610610645 - 2¹⁴ = 610594261 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61061060 + ... + 61061069.

It is an arithmetic number, because the mean of its divisors is an integer number (183183195).

Almost surely, 2^610610645 is an apocalyptic number.

It is an amenable number.

610610645 is a deficient number, since it is larger than the sum of its proper divisors (122122135).

610610645 is a wasteful number, since it uses less digits than its factorization.

610610645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122122134.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 610610645 is about 24710.5371248785. The cubic root of 610610645 is about 848.3755109236.

The spelling of 610610645 in words is "six hundred ten million, six hundred ten thousand, six hundred forty-five".