1715742881 has 2 divisors, whose sum is σ = 1715742882. Its totient is φ = 1715742880.

The previous prime is 1715742869. The next prime is 1715742893. The reversal of 1715742881 is 1882475171.

It is a balanced prime because it is at equal distance from previous prime (1715742869) and next prime (1715742893).

It can be written as a sum of positive squares in only one way, i.e., 1183979281 + 531763600 = 34409^2 + 23060^2 .

It is an emirp because it is prime and its reverse (1882475171) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1715742881 - 2¹⁴ = 1715726497 is a prime.

It is a super-2 number, since 2×1715742881² = 5887547267404360322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1715742841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 857871440 + 857871441.

It is an arithmetic number, because the mean of its divisors is an integer number (857871441).

Almost surely, 2^1715742881 is an apocalyptic number.

It is an amenable number.

1715742881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1715742881 is an equidigital number, since it uses as much as digits as its factorization.

1715742881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 125440, while the sum is 44.

The square root of 1715742881 is about 41421.5267825801. The cubic root of 1715742881 is about 1197.1559688324.

The spelling of 1715742881 in words is "one billion, seven hundred fifteen million, seven hundred forty-two thousand, eight hundred eighty-one".