1022520497 has 2 divisors, whose sum is σ = 1022520498. Its totient is φ = 1022520496.

The previous prime is 1022520481. The next prime is 1022520517. The reversal of 1022520497 is 7940252201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 709902736 + 312617761 = 26644^2 + 17681^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022520497 - 2⁴ = 1022520481 is a prime.

It is not a weakly prime, because it can be changed into another prime (1022520797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511260248 + 511260249.

It is an arithmetic number, because the mean of its divisors is an integer number (511260249).

Almost surely, 2^1022520497 is an apocalyptic number.

It is an amenable number.

1022520497 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022520497 is an equidigital number, since it uses as much as digits as its factorization.

1022520497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 1022520497 is about 31976.8744094854. The cubic root of 1022520497 is about 1007.4511744364.

Adding to 1022520497 its reverse (7940252201), we get a palindrome (8962772698).

The spelling of 1022520497 in words is "one billion, twenty-two million, five hundred twenty thousand, four hundred ninety-seven".