1085197 has 2 divisors, whose sum is σ = 1085198. Its totient is φ = 1085196.

The previous prime is 1085179. The next prime is 1085221. The reversal of 1085197 is 7915801.

Together with previous prime (1085179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 749956 + 335241 = 866^2 + 579^2 .

It is an emirp because it is prime and its reverse (7915801) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1085197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1085137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542598 + 542599.

It is an arithmetic number, because the mean of its divisors is an integer number (542599).

2^1085197 is an apocalyptic number.

It is an amenable number.

1085197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1085197 is an equidigital number, since it uses as much as digits as its factorization.

1085197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 31.

The square root of 1085197 is about 1041.7278915341. The cubic root of 1085197 is about 102.7628628845.

The spelling of 1085197 in words is "one million, eighty-five thousand, one hundred ninety-seven".