1022003197 has 2 divisors, whose sum is σ = 1022003198. Its totient is φ = 1022003196.

The previous prime is 1022003113. The next prime is 1022003201. The reversal of 1022003197 is 7913002201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 725440356 + 296562841 = 26934^2 + 17221^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022003197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022003107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511001598 + 511001599.

It is an arithmetic number, because the mean of its divisors is an integer number (511001599).

Almost surely, 2^1022003197 is an apocalyptic number.

It is an amenable number.

1022003197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022003197 is an equidigital number, since it uses as much as digits as its factorization.

1022003197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 1022003197 is about 31968.7847282314. The cubic root of 1022003197 is about 1007.2812536691.

Adding to 1022003197 its reverse (7913002201), we get a palindrome (8935005398).

The spelling of 1022003197 in words is "one billion, twenty-two million, three thousand, one hundred ninety-seven".