1085174917 has 2 divisors, whose sum is σ = 1085174918. Its totient is φ = 1085174916.

The previous prime is 1085174903. The next prime is 1085174929. The reversal of 1085174917 is 7194715801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1026177156 + 58997761 = 32034^2 + 7681^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1085174917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1085174317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542587458 + 542587459.

It is an arithmetic number, because the mean of its divisors is an integer number (542587459).

Almost surely, 2^1085174917 is an apocalyptic number.

It is an amenable number.

1085174917 is a deficient number, since it is larger than the sum of its proper divisors (1).

1085174917 is an equidigital number, since it uses as much as digits as its factorization.

1085174917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 43.

The square root of 1085174917 is about 32941.9932153475. The cubic root of 1085174917 is about 1027.6216582899.

The spelling of 1085174917 in words is "one billion, eighty-five million, one hundred seventy-four thousand, nine hundred seventeen".