1170645347281 has 2 divisors, whose sum is σ = 1170645347282. Its totient is φ = 1170645347280.

The previous prime is 1170645347279. The next prime is 1170645347297. The reversal of 1170645347281 is 1827435460711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 757143619600 + 413501727681 = 870140^2 + 643041^2 .

It is a cyclic number.

It is not a de Polignac number, because 1170645347281 - 2¹ = 1170645347279 is a prime.

It is a super-2 number, since 2×1170645347281² (a number of 25 digits) contains 22 as substring.

Together with 1170645347279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1170645347381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 585322673640 + 585322673641.

It is an arithmetic number, because the mean of its divisors is an integer number (585322673641).

Almost surely, 2^{1170645347281} is an apocalyptic number.

It is an amenable number.

1170645347281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1170645347281 is an equidigital number, since it uses as much as digits as its factorization.

1170645347281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 1170645347281 in words is "one trillion, one hundred seventy billion, six hundred forty-five million, three hundred forty-seven thousand, two hundred eighty-one".