610206161 has 4 divisors (see below), whose sum is σ = 617062500. Its totient is φ = 603349824.

The previous prime is 610206101. The next prime is 610206173. The reversal of 610206161 is 161602016.

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 32092225 + 578113936 = 5665^2 + 24044^2 .

It is a cyclic number.

It is not a de Polignac number, because 610206161 - 2¹⁸ = 609944017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (610206101) 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 3 ways as a sum of consecutive naturals, for example, 3428036 + ... + 3428213.

It is an arithmetic number, because the mean of its divisors is an integer number (154265625).

Almost surely, 2^610206161 is an apocalyptic number.

It is an amenable number.

610206161 is a deficient number, since it is larger than the sum of its proper divisors (6856339).

610206161 is an equidigital number, since it uses as much as digits as its factorization.

610206161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6856338.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 610206161 is about 24702.3513253293. The cubic root of 610206161 is about 848.1881410492.

Adding to 610206161 its reverse (161602016), we get a palindrome (771808177).

The spelling of 610206161 in words is "six hundred ten million, two hundred six thousand, one hundred sixty-one".