1702423081 has 2 divisors, whose sum is σ = 1702423082. Its totient is φ = 1702423080.

The previous prime is 1702423067. The next prime is 1702423109. The reversal of 1702423081 is 1803242071.

It is the 16845-th star number.

It is an a-pointer prime, because the next prime (1702423109) can be obtained adding 1702423081 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1681410025 + 21013056 = 41005^2 + 4584^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1702423081 is a prime.

It is a super-2 number, since 2×1702423081² = 5796488693443065122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1702423031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 851211540 + 851211541.

It is an arithmetic number, because the mean of its divisors is an integer number (851211541).

Almost surely, 2^1702423081 is an apocalyptic number.

It is an amenable number.

1702423081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1702423081 is an equidigital number, since it uses as much as digits as its factorization.

1702423081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 1702423081 is about 41260.4299662522. The cubic root of 1702423081 is about 1194.0499632113.

The spelling of 1702423081 in words is "one billion, seven hundred two million, four hundred twenty-three thousand, eighty-one".