2081717147 has 2 divisors, whose sum is σ = 2081717148. Its totient is φ = 2081717146.

The previous prime is 2081717137. The next prime is 2081717221. The reversal of 2081717147 is 7417171802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2081717147 - 2⁸ = 2081716891 is a prime.

It is a super-2 number, since 2×2081717147² = 8667092560227639218, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2081717147.

It is not a weakly prime, because it can be changed into another prime (2081717117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1040858573 + 1040858574.

It is an arithmetic number, because the mean of its divisors is an integer number (1040858574).

Almost surely, 2^2081717147 is an apocalyptic number.

2081717147 is a deficient number, since it is larger than the sum of its proper divisors (1).

2081717147 is an equidigital number, since it uses as much as digits as its factorization.

2081717147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21952, while the sum is 38.

The square root of 2081717147 is about 45625.8385895536. The cubic root of 2081717147 is about 1276.8520355271.

Adding to 2081717147 its reverse (7417171802), we get a palindrome (9498888949).

The spelling of 2081717147 in words is "two billion, eighty-one million, seven hundred seventeen thousand, one hundred forty-seven".