1726485161 has 2 divisors, whose sum is σ = 1726485162. Its totient is φ = 1726485160.

The previous prime is 1726485149. The next prime is 1726485181. The reversal of 1726485161 is 1615846271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1291971136 + 434514025 = 35944^2 + 20845^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1726485161 is a prime.

It is a super-2 number, since 2×1726485161² = 5961502022306391842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1726485181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 863242580 + 863242581.

It is an arithmetic number, because the mean of its divisors is an integer number (863242581).

Almost surely, 2^1726485161 is an apocalyptic number.

It is an amenable number.

1726485161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1726485161 is an equidigital number, since it uses as much as digits as its factorization.

1726485161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 41.

The square root of 1726485161 is about 41550.9947053016. The cubic root of 1726485161 is about 1199.6492403071.

The spelling of 1726485161 in words is "one billion, seven hundred twenty-six million, four hundred eighty-five thousand, one hundred sixty-one".