2159252717 has 2 divisors, whose sum is σ = 2159252718. Its totient is φ = 2159252716.

The previous prime is 2159252657. The next prime is 2159252731. The reversal of 2159252717 is 7172529512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1478094916 + 681157801 = 38446^2 + 26099^2 .

It is a cyclic number.

It is not a de Polignac number, because 2159252717 - 2⁸ = 2159252461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2159252317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1079626358 + 1079626359.

It is an arithmetic number, because the mean of its divisors is an integer number (1079626359).

Almost surely, 2^2159252717 is an apocalyptic number.

It is an amenable number.

2159252717 is a deficient number, since it is larger than the sum of its proper divisors (1).

2159252717 is an equidigital number, since it uses as much as digits as its factorization.

2159252717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88200, while the sum is 41.

The square root of 2159252717 is about 46467.7599739863. The cubic root of 2159252717 is about 1292.5117253045.

The spelling of 2159252717 in words is "two billion, one hundred fifty-nine million, two hundred fifty-two thousand, seven hundred seventeen".