1726140061 has 2 divisors, whose sum is σ = 1726140062. Its totient is φ = 1726140060.

The previous prime is 1726140029. The next prime is 1726140077. The reversal of 1726140061 is 1600416271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1272705625 + 453434436 = 35675^2 + 21294^2 .

It is a cyclic number.

It is not a de Polignac number, because 1726140061 - 2⁵ = 1726140029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1726140011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 863070030 + 863070031.

It is an arithmetic number, because the mean of its divisors is an integer number (863070031).

Almost surely, 2^1726140061 is an apocalyptic number.

It is an amenable number.

1726140061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1726140061 is an equidigital number, since it uses as much as digits as its factorization.

1726140061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 1726140061 is about 41546.8417692609. The cubic root of 1726140061 is about 1199.5693040008.

The spelling of 1726140061 in words is "one billion, seven hundred twenty-six million, one hundred forty thousand, sixty-one".