1006521097 has 2 divisors, whose sum is σ = 1006521098. Its totient is φ = 1006521096.

The previous prime is 1006521079. The next prime is 1006521107. The reversal of 1006521097 is 7901256001.

Together with previous prime (1006521079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 873557136 + 132963961 = 29556^2 + 11531^2 .

It is a cyclic number.

It is not a de Polignac number, because 1006521097 - 2⁷ = 1006520969 is a prime.

It is not a weakly prime, because it can be changed into another prime (1006521017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 503260548 + 503260549.

It is an arithmetic number, because the mean of its divisors is an integer number (503260549).

Almost surely, 2^1006521097 is an apocalyptic number.

It is an amenable number.

1006521097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1006521097 is an equidigital number, since it uses as much as digits as its factorization.

1006521097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 1006521097 is about 31725.7166506921. The cubic root of 1006521097 is about 1002.1689910764.

Adding to 1006521097 its reverse (7901256001), we get a palindrome (8907777098).

The spelling of 1006521097 in words is "one billion, six million, five hundred twenty-one thousand, ninety-seven".