1712025509 has 2 divisors, whose sum is σ = 1712025510. Its totient is φ = 1712025508.

The previous prime is 1712025481. The next prime is 1712025541. The reversal of 1712025509 is 9055202171.

It is a happy number.

It is an a-pointer prime, because the next prime (1712025541) can be obtained adding 1712025509 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1260463009 + 451562500 = 35503^2 + 21250^2 .

It is a cyclic number.

It is not a de Polignac number, because 1712025509 - 2²⁸ = 1443590053 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1712025709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 856012754 + 856012755.

It is an arithmetic number, because the mean of its divisors is an integer number (856012755).

Almost surely, 2^1712025509 is an apocalyptic number.

It is an amenable number.

1712025509 is a deficient number, since it is larger than the sum of its proper divisors (1).

1712025509 is an equidigital number, since it uses as much as digits as its factorization.

1712025509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 1712025509 is about 41376.6299860199. The cubic root of 1712025509 is about 1196.2907475091.

The spelling of 1712025509 in words is "one billion, seven hundred twelve million, twenty-five thousand, five hundred nine".