1026197 has 2 divisors, whose sum is σ = 1026198. Its totient is φ = 1026196.

The previous prime is 1026167. The next prime is 1026199. The reversal of 1026197 is 7916201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1012036 + 14161 = 1006^2 + 119^2 .

It is a cyclic number.

It is not a de Polignac number, because 1026197 - 2¹⁸ = 764053 is a prime.

Together with 1026199, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1026199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513098 + 513099.

It is an arithmetic number, because the mean of its divisors is an integer number (513099).

2^1026197 is an apocalyptic number.

It is an amenable number.

1026197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1026197 is an equidigital number, since it uses as much as digits as its factorization.

1026197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 1026197 is about 1013.0138202414. The cubic root of 1026197 is about 100.8657170458.

The spelling of 1026197 in words is "one million, twenty-six thousand, one hundred ninety-seven".