1721314571 has 2 divisors, whose sum is σ = 1721314572. Its totient is φ = 1721314570.

The previous prime is 1721314561. The next prime is 1721314597. The reversal of 1721314571 is 1754131271.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1721314571 - 2¹⁸ = 1721052427 is a prime.

It is not a weakly prime, because it can be changed into another prime (1721314501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 860657285 + 860657286.

It is an arithmetic number, because the mean of its divisors is an integer number (860657286).

Almost surely, 2^1721314571 is an apocalyptic number.

1721314571 is a deficient number, since it is larger than the sum of its proper divisors (1).

1721314571 is an equidigital number, since it uses as much as digits as its factorization.

1721314571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5880, while the sum is 32.

The square root of 1721314571 is about 41488.7282403305. The cubic root of 1721314571 is about 1198.4504469231.

The spelling of 1721314571 in words is "one billion, seven hundred twenty-one million, three hundred fourteen thousand, five hundred seventy-one".