1610810161 has 2 divisors, whose sum is σ = 1610810162. Its totient is φ = 1610810160.

The previous prime is 1610810147. The next prime is 1610810203. The reversal of 1610810161 is 1610180161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1055925025 + 554885136 = 32495^2 + 23556^2 .

It is an emirp because it is prime and its reverse (1610180161) is a distict prime. It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 1910180191 and 1910810191.

It is a cyclic number.

It is not a de Polignac number, because 1610810161 - 2¹¹ = 1610808113 is a prime.

It is not a weakly prime, because it can be changed into another prime (1610810111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 805405080 + 805405081.

It is an arithmetic number, because the mean of its divisors is an integer number (805405081).

Almost surely, 2^1610810161 is an apocalyptic number.

It is an amenable number.

1610810161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1610810161 is an equidigital number, since it uses as much as digits as its factorization.

1610810161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 25.

The square root of 1610810161 is about 40134.8995389300. The cubic root of 1610810161 is about 1172.2352770460.

The spelling of 1610810161 in words is "one billion, six hundred ten million, eight hundred ten thousand, one hundred sixty-one".