1180897 has 2 divisors, whose sum is σ = 1180898. Its totient is φ = 1180896.

The previous prime is 1180891. The next prime is 1180901. The reversal of 1180897 is 7980811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1147041 + 33856 = 1071^2 + 184^2 .

It is an emirp because it is prime and its reverse (7980811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1180897 - 2¹⁹ = 656609 is a prime.

It is not a weakly prime, because it can be changed into another prime (1180891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 590448 + 590449.

It is an arithmetic number, because the mean of its divisors is an integer number (590449).

2^1180897 is an apocalyptic number.

It is an amenable number.

1180897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1180897 is an equidigital number, since it uses as much as digits as its factorization.

1180897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 34.

The square root of 1180897 is about 1086.6908484017. The cubic root of 1180897 is about 105.6989499998.

It can be divided in two parts, 11 and 80897, that added together give a palindrome (80908).

The spelling of 1180897 in words is "one million, one hundred eighty thousand, eight hundred ninety-seven".