1718874161 has 2 divisors, whose sum is σ = 1718874162. Its totient is φ = 1718874160.

The previous prime is 1718874149. The next prime is 1718874173. The reversal of 1718874161 is 1614788171.

It is a balanced prime because it is at equal distance from previous prime (1718874149) and next prime (1718874173).

It can be written as a sum of positive squares in only one way, i.e., 1705690000 + 13184161 = 41300^2 + 3631^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1718874161 is a prime.

It is not a weakly prime, because it can be changed into another prime (1718874061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 859437080 + 859437081.

It is an arithmetic number, because the mean of its divisors is an integer number (859437081).

Almost surely, 2^1718874161 is an apocalyptic number.

It is an amenable number.

1718874161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1718874161 is an equidigital number, since it uses as much as digits as its factorization.

1718874161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75264, while the sum is 44.

The square root of 1718874161 is about 41459.3072904022. The cubic root of 1718874161 is about 1197.8838075702.

The spelling of 1718874161 in words is "one billion, seven hundred eighteen million, eight hundred seventy-four thousand, one hundred sixty-one".