1726530161 has 2 divisors, whose sum is σ = 1726530162. Its totient is φ = 1726530160.

The previous prime is 1726530107. The next prime is 1726530163. The reversal of 1726530161 is 1610356271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1656490000 + 70040161 = 40700^2 + 8369^2 .

It is a cyclic number.

It is not a de Polignac number, because 1726530161 - 2⁶ = 1726530097 is a prime.

Together with 1726530163, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1726530163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 863265080 + 863265081.

It is an arithmetic number, because the mean of its divisors is an integer number (863265081).

Almost surely, 2^1726530161 is an apocalyptic number.

It is an amenable number.

1726530161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1726530161 is an equidigital number, since it uses as much as digits as its factorization.

1726530161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 1726530161 is about 41551.5362050550. The cubic root of 1726530161 is about 1199.6596629755.

The spelling of 1726530161 in words is "one billion, seven hundred twenty-six million, five hundred thirty thousand, one hundred sixty-one".